diff --git a/src/3-three/verbs/api/conjugate/toInfinitive.js b/src/3-three/verbs/api/conjugate/toInfinitive.js
new file mode 100644
index 0000000..d06df7c
--- /dev/null
+++ b/src/3-three/verbs/api/conjugate/toInfinitive.js
@@ -0,0 +1,30 @@
+import { doDoes, getTense } from '../lib.js'
+const keep = { tags: true }
+
+// all verb forms are the same
+const toInf = function (vb, parsed) {
+  const { toInfinitive } = vb.methods.two.transform.verb
+  const { root, auxiliary } = parsed
+  const aux = auxiliary.terms().harden()
+  let str = root.text('normal')
+  str = toInfinitive(str, vb.model, getTense(root))
+  if (str) {
+    vb.replace(root, str, keep).tag('Verb').firstTerm().tag('Infinitive')
+  }
+  // remove any auxiliary terms
+  if (aux.found) {
+    vb.remove(aux)
+  }
+  // there is no real way to do this
+  // 'i not walk'?  'i walk not'?
+  if (parsed.negative.found) {
+    if (!vb.has('not')) {
+      vb.prepend('not')
+    }
+    const does = doDoes(vb, parsed)
+    vb.prepend(does)
+  }
+  vb.fullSentence().compute(['freeze', 'lexicon', 'preTagger', 'postTagger', 'unfreeze', 'chunks'])
+  return vb
+}
+export default toInf
diff --git a/tests/three/verbs/toInfinitive.test.js b/tests/three/verbs/toInfinitive.test.js
new file mode 100644
index 0000000..f45285c
--- /dev/null
+++ b/tests/three/verbs/toInfinitive.test.js
@@ -0,0 +1,496 @@
+import test from 'tape'
+import nlp from '../_lib.js'
+const here = '[three/verb-toInfinitive] '
+
+test('toInfinitive-phrase:', function (t) {
+  const arr = [
+    ['he walked', 'he walk'],
+    ['i walked', 'i walk'],
+    ['we walked', 'we walk'],
+    ['they walked', 'they walk'],
+    ['the friends walked', 'the friends walk'],
+    ['the friend walked', 'the friend walk'],
+    ['our users walked', 'our users walk'],
+    ['our user walked', 'our user walk'],
+    ['the eye closed', 'the eye close'],
+    ['the eyes closed', 'the eyes close'],
+    ['their colloseum will open', 'their colloseum open'],
+    ['their children will open', 'their children open'],
+    ['he walks', 'he walk'],
+    ['he walked', 'he walk'],
+    ['he will walk', 'he walk'],
+    ['he is walking', 'he walk'],
+    ['he was walking', 'he walk'],
+    ['i am walking', 'i walk'],
+    ['he will be walking', 'he walk'],
+    ['he has walked', 'he walk'],
+    ['he had walked', 'he walk'],
+    ['he will have walked', 'he walk'],
+    ['he has been walking', 'he walk'],
+    ['he had been walking', 'he walk'],
+    ['he will have been walking', 'he walk'],
+    ['got walked', 'walk'],
+    ['was walked', 'walk'],
+    ['were walked', 'walk'],
+    ['i was being walked', 'i walk'],
+    ['had been walked', 'walk'],
+    ['have been walked', 'walk'],
+    ['is walked', 'walk'],
+    ['are walked', 'walk'],
+    ['is being walked', 'walk'],
+    ['she has been walked', 'she walk'],
+    ['had been walked', 'walk'],
+    ['will have been walked', 'walk'],
+    ['will be walked', 'walk'],
+    ['would be walked', 'walk'],
+    ['would have been walked', 'walk'],
+    ['is going to walk', 'walk'],
+    ['did walk', 'walk'],
+    ['used to walk', 'walk'],
+    ['do walk', 'walk'],
+    ['does walk', 'walk'],
+
+    // negatives
+    ['i did not walk', 'i do not walk'],
+    ['we did not walk', 'we do not walk'],
+    ['he did not walk', 'he does not walk'],
+    ['i was not being walked', 'i do not walk'],
+    ['i had not walked', 'i do not walk'],
+    ['I will do that', 'I do that'],
+    ['I will not do that', 'I do not do that'],
+    ["I won't do that", 'I do not do that'],
+    // ['I will never do that', 'I do not do that'],
+
+    // want-infinitive
+    // ['he wants to walk', 'he want to walk'],
+    // ['he wanted to walk', 'he want to walk'],
+    // ['he will want to walk', 'he want to walk'],
+    // adverbs
+    // ['i was really not being walked', 'i do really not walk'],
+    // ['i was not really being walked', 'i do not really walk'],
+    ['i was being really not walked', 'i do really not walk'],
+    ['i was being not really walked', 'i do not really walk'],
+    ['he was not going to walk', 'he does not walk'],
+    ['we are putting', 'we put'],
+    // from particple
+    ['overthrown', 'overthrow'],
+    ['thrown', 'throw'],
+    // ["overgrown", "overgrow"],
+    ['flown', 'fly'],
+    ['shown', 'show'],
+    ['sown', 'sow'],
+    ['sworn', 'swear'],
+    // ["worn", "wear"],
+    ['forgotten', 'forget'],
+    ['bitten', 'bite'],
+    ['stolen', 'steal'],
+    // ["shrunk", "shrink"],
+
+    ['upheld', 'uphold'],
+    ['withheld', 'withhold'],
+    ['dyed', 'dye'],
+    ['gutted', 'gut'],
+    ['slotted', 'slot'],
+    ['allotted', 'allot'],
+    ['dotted', 'dot'],
+    ['acquitted', 'acquit'],
+    ['knitted', 'knit'],
+    ['transmitted', 'transmit'],
+    ['permitted', 'permit'],
+    ['omitted', 'omit'],
+    ['committed', 'commit'],
+    ['remitted', 'remit'],
+    ['emitted', 'emit'],
+    ['admitted', 'admit'],
+    ['submitted', 'submit'],
+    ['outfitted', 'outfit'],
+    ['benefitted', 'benefit'],
+    ['he fitted', 'he fit'],
+    ['vetted', 'vet'],
+    ['persuaded', 'persuade'],
+    ['netted', 'net'],
+    ['formatted', 'format'],
+    ['tasted', 'taste'],
+    ['he quoted', 'he quote'],
+    ['consulted', 'consult'],
+    ['resulted', 'result'],
+    ['catapulted', 'catapult'],
+    ['defaulted', 'default'],
+    ['wilted', 'wilt'],
+    ['tilted', 'tilt'],
+    ['salted', 'salt'],
+    ['malted', 'malt'],
+    ['exited', 'exit'],
+    ['he excited', 'he excite'],
+    ['deposited', 'deposit'],
+    ['transited', 'transit'],
+    ['revisited', 'revisit'],
+    ['visited', 'visit'],
+    ['inherited', 'inherit'],
+    ['solicited', 'solicit'],
+    ['expedited', 'expedite'],
+    ['marketed', 'market'],
+    ['skyrocketed', 'skyrocket'],
+    ['acted', 'act'],
+    ['accentuated', 'accentuate'],
+    ['situated', 'situate'],
+    ['perpetuated', 'perpetuate'],
+    ['fluctuated', 'fluctuate'],
+    ['evaluated', 'evaluate'],
+    ['graduated', 'graduate'],
+    ['abbreviated', 'abbreviate'],
+    ['alleviated', 'alleviate'],
+    ['deviated', 'deviate'],
+    ['renegotiated', 'renegotiate'],
+    ['negotiated', 'negotiate'],
+    ['differentiated', 'differentiate'],
+    ['substantiated', 'substantiate'],
+    ['self-initiated', 'self-initiate'],
+    ['initiated', 'initiate'],
+    ['satiated', 'satiate'],
+    ['expropriated', 'expropriate'],
+    ['appropriated', 'appropriate'],
+    ['affiliated', 'affiliate'],
+    ['conciliated', 'conciliate'],
+    ['repudiated', 'repudiate'],
+    ['mediated', 'mediate'],
+    ['enunciated', 'enunciate'],
+    ['created', 'create'],
+    ['warehoused', 'warehouse'],
+    ['kissed', 'kiss'],
+    ['missed', 'miss'],
+    ['spurred', 'spur'],
+    ['blurred', 'blur'],
+    ['incurred', 'incur'],
+    ['occurred', 'occur'],
+    ['deterred', 'deter'],
+    ['transferred', 'transfer'],
+    ['conferred', 'confer'],
+    ['inferred', 'infer'],
+    ['referred', 'refer'],
+    ['marred', 'mar'],
+    ['jarred', 'jar'],
+    ['scarred', 'scar'],
+    ['barred', 'bar'],
+    ['quickly scored', 'quickly score'],
+    ['quickly favored', 'quickly favor'],
+    ['quickly monitored', 'quickly monitor'],
+    ['quickly factored', 'quickly factor'],
+    ['quickly co-sponsored', 'quickly co-sponsor'],
+    ['quickly sponsored', 'quickly sponsor'],
+    ['quickly mirrored', 'quickly mirror'],
+    ['quickly anchored', 'quickly anchor'],
+    ['quickly stopped', 'quickly stop'],
+    ['quickly topped', 'quickly top'],
+    ['quickly popped', 'quickly pop'],
+    ['quickly chopped', 'quickly chop'],
+    ['quickly sipped', 'quickly sip'],
+    ['outstripped quickly', 'outstrip quickly'],
+    ['stripped quickly', 'strip quickly'],
+    ['whipped', 'whip'],
+    ['transshipped', 'transship'],
+    ['worshipped', 'worship'],
+    ['shipped', 'ship'],
+    ['dipped', 'dip'],
+    ['stepped', 'step'],
+    ['tapped', 'tap'],
+    ['unwrapped', 'unwrap'],
+    ['shrinkwrapped', 'shrinkwrap'],
+    ['wrapped', 'wrap'],
+    ['strapped', 'strap'],
+    ['scrapped', 'scrap'],
+    ['snapped', 'snap'],
+    ['mapped', 'map'],
+    ['revamped', 'revamp'],
+    ['stamped', 'stamp'],
+    ['clamped', 'clamp'],
+    ['helped', 'help'],
+    ['seeped', 'seep'],
+    ['reaped', 'reap'],
+    ['banned', 'ban'],
+    ['frowned', 'frown'],
+    ['drowned', 'drown'],
+    ['crowned', 'crown'],
+    ['browned', 'brown'],
+    ['downed', 'down'],
+    ['wholly-owned', 'wholly-own'],
+    ['co-owned', 'co-own'],
+    ['owned', 'own'],
+    ['pawned', 'pawn'],
+    ['attuned', 'attune'],
+    ['tuned', 'tune'],
+    ['boned', 'bone'],
+    ['twinned', 'twin'],
+    ['underpinned', 'underpin'],
+    ['skinned', 'skin'],
+    ['thinned', 'thin'],
+    ['spanned', 'span'],
+    ['panned', 'pan'],
+    ['scanned', 'scan'],
+    ['canned', 'can'],
+    ['intertwined', 'intertwine'],
+    ['entwined', 'entwine'],
+    ['destined', 'destine'],
+    ['quarantined', 'quarantine'],
+    ['enshrined', 'enshrine'],
+    ['predetermined', 'predetermine'],
+    ['undermined', 'undermine'],
+    ['examined', 'examine'],
+    ['mined', 'mine'],
+    ['outlined', 'outline'],
+    ['underlined', 'underline'],
+    ['streamlined', 'streamline'],
+    ['sidelined', 'sideline'],
+    ['inclined', 'incline'],
+    ['declined', 'decline'],
+    ['lined', 'line'],
+    ['machined', 'machine'],
+    ['imagined', 'imagine'],
+    ['confined', 'confine'],
+    ['quickly defined', 'quickly define'],
+    ['fined', 'fine'],
+    ['dined', 'dine'],
+    ['convened', 'convene'],
+    ['caned', 'cane'],
+    ['annulled', 'annul'],
+    ['extolled', 'extol'],
+    ['quickly leveled', 'quickly level'],
+    ['travelled', 'travel'],
+    ['expelled', 'expel'],
+    ['dispelled', 'dispel'],
+    ['compelled', 'compel'],
+    ['funnelled', 'funnel'],
+    ['channelled', 'channel'],
+    ['cancelled', 'cancel'],
+    ['rivalled', 'rival'],
+    ['profiled', 'profile'],
+    ['scaled', 'scale'],
+    ['baled', 'bale'],
+    ['invoked', 'invoke'],
+    ['revoked', 'revoke'],
+    ['choked', 'choke'],
+    ['he spiked', 'he spike'],
+    ['mimicked', 'mimic'],
+    ['flaked', 'flake'],
+    // ["baked", "bake"],
+    ['guaranteed', 'guarantee'],
+    ['agreed', 'agree'],
+    ['freed', 'free'],
+    ['fed', 'feed'],
+    ['reworded', 'reword'],
+    ['worded', 'word'],
+    ['afforded', 'afford'],
+    ['forwarded', 'forward'],
+    ['rewarded', 'reward'],
+    ['safely guarded', 'safely guard'],
+    ['regarded', 'regard'],
+    ['discarded', 'discard'],
+    ['carded', 'card'],
+    ['bombarded', 'bombard'],
+    ['ended', 'end'],
+    ['aided', 'aid'],
+    ['plodded', 'plod'],
+    ['skidded', 'skid'],
+    ['embedded', 'embed'],
+    ['dissuaded', 'dissuade'],
+    ['persuaded', 'persuade'],
+    ['dubbed', 'dub'],
+    ['bobbed', 'bob'],
+    ['ribbed', 'rib'],
+    ['swabbed', 'swab'],
+    ['stabbed', 'stab'],
+    ['nabbed', 'nab'],
+    ['opened', 'open'],
+    // ["resold", "resell"],
+    ['blitzed', 'blitz'],
+    ['overpaid', 'overpay'],
+    ['marketed', 'market'],
+    ['skyrocketed', 'skyrocket'],
+    ['ticketed', 'ticket'],
+    ['aroused', 'arouse'],
+    ['espoused', 'espouse'],
+    ['warehoused', 'warehouse'],
+    ['created', 'create'],
+    ['acquired', 'acquire'],
+    ['aired', 'air'],
+    ['persevered', 'persevere'],
+    ['imprisoned', 'imprison'],
+    ['poisoned', 'poison'],
+    ['he seasoned', 'he season'],
+    ['combed', 'comb'],
+    ['climbed', 'climb'],
+    ['succumbed', 'succumb'],
+    ['decreed', 'decree'],
+    ['hacked', 'hack'],
+    ['clocked', 'clock'],
+    ['blocked', 'block'],
+    ['linked', 'link'],
+    ['tasked', 'task'],
+    ['reckoned', 'reckon'],
+    ['shouted', 'shout'],
+    ['poured', 'pour'],
+    ['aroused', 'arouse'],
+    ['decreed', 'decree'],
+    ['freed', 'free'],
+
+    // ["interpreted", "interpret"],
+    // ["longed", "long"],
+    // ["intervened", "intervene"],
+    // ["stoned", "stone"],
+    // ["phoned", "phone"],
+    // ["overtaken", "overtake"],
+    // ["undertaken", "undertake"],
+    // ["taken", "take"],
+    // ["overseen", "oversee"],
+    // ["foreseen", "foresee"],
+    // ["overridden", "override"],
+    // ["forbidden", "forbid"],
+    // ["withstood", "withstand"],
+    // ["ground", "grind"],
+    // ["acquired", "acquire"],
+    // ["aired", "air"],
+    // ["adhered", "adhere"],
+    // ["ill-equipped", "ill-equip"],
+    // ["equipped", "equip"],
+    // ["underdeveloped", "underdevelop"],
+    // ["well-developed", "well-develop"],
+    // ["foreign-owned", "foreign-own"],
+
+    ['he forecasted', 'he forecast'],
+    ['he misunderstood', 'he misunderstand'],
+    ['he blasted', 'he blast'],
+    ['he ignited', 'he ignite'],
+    ['he permeated', 'he permeate'],
+    ['he recreated', 'he recreate'],
+    ['he praised', 'he praise'],
+    ['he explored', 'he explore'],
+    ['he layered', 'he layer'],
+    ['he answered', 'he answer'],
+    ['he lowered', 'he lower'],
+    ['he severed', 'he sever'],
+    ['he leaked', 'he leak'],
+    ['he buttered', 'he butter'],
+    ['he uttered', 'he utter'],
+    ['he cleaned', 'he clean'],
+    ['he rained', 'he rain'],
+    ['he joined', 'he join'],
+    ['he ruined', 'he ruin'],
+    ['he postponed', 'he postpone'],
+    ['he pondered', 'he ponder'],
+    ['he triggered', 'he trigger'],
+    ['he checkered', 'he checker'],
+    ['he slaughtered', 'he slaughter'],
+    ['he chartered', 'he charter'],
+    ['he sequestered', 'he sequester'],
+    ['he bolstered', 'he bolster'],
+    ['he mustered', 'he muster'],
+    ['he benefited', 'he benefit'],
+    ['he credited', 'he credit'],
+    ['he deposited', 'he deposit'],
+    ['he edited', 'he edit'],
+    ['he exhibited', 'he exhibit'],
+    ['he exploited', 'he exploit'],
+    ['he inherited', 'he inherit'],
+    ['he prohibited', 'he prohibit'],
+    ['he recruited', 'he recruit'],
+    ['he submited', 'he submit'],
+    ['he suited', 'he suit'],
+    ['he visited', 'he visit'],
+    ['he vomited', 'he vomit'],
+    ['he waited', 'he wait'],
+    ['he cited', 'he cite'],
+    ['he excited', 'he excite'],
+    ['he invited', 'he invite'],
+    ['he recited', 'he recite'],
+
+    // gerund -> infinitive
+    ['coming', 'come'],
+    ['joking', 'joke'],
+    ['poking', 'poke'],
+    ['naming', 'name'],
+    ['tuning', 'tune'],
+    ['hazing', 'haze'],
+    //phrasal
+    ['hazing over', 'haze over'],
+    // ['hazing-over', 'haze-over'],
+
+    // pastTense -> infinitive
+    ['came', 'come'],
+    ['named', 'name'],
+    ['moved', 'move'],
+    ['joked', 'joke'],
+    ['poked', 'poke'],
+    ['hooping', 'hoop'],
+    ['ached', 'ache'],
+    ['tuned', 'tune'],
+    //phrasal
+    ['hazed over', 'haze over'],
+    // ['hazed-over', 'haze-over'],
+
+    // ["have been working non-stop on the project", `To have been working non-stop on the project`],
+    // ["will be leaving early tomorrow", `To be leaving early tomorrow`],
+    // ["had just finished washing the dishes", `To have just finished washing the dishes`],
+    // ["should have checked the details more carefully", `To have checked the details more carefully`],
+    // ["can easily solve the puzzle", `To be able to solve the puzzle easily`],
+    // ["might have been waiting at the wrong place", `To have been waiting at the wrong place`],
+    // ["would have gone to the event if invited", `To have gone to the event if invited`],
+    // ["should be preparing for the presentation", `To be preparing for the presentation`],
+    // ["is trying to learn Spanish", `To be trying to learn Spanish`],
+    // ["has been thinking about changing careers", `To have been thinking about changing careers`],
+    // ["have been considering a new strategy", `To have been considering a new strategy`],
+    // ["will be going to the concert tonight", `To be going to the concert tonight`],
+    // ["was just making a cup of coffee", `To have just made a cup of coffee`],
+    // ["must have forgotten the appointment", `To have forgotten the appointment`],
+    // ["can jump higher than anyone else", `To be able to jump higher than anyone else`],
+    // ["could have been mistaken about the time", `To have been mistaken about the time`],
+    // ["would be flying to Paris next month", `To be flying to Paris next month`],
+    // ["should have started the project earlier", `To have started the project earlier`],
+    // ["is planning to visit the museum", `To be planning to visit the museum`],
+    // ["has been dreaming about a vacation", `To have been dreaming about a vacation`],
+    // ["might be moving to a different city", `To be moving to a different city`],
+    // ["was reading a fascinating book", `To have read a fascinating book`],
+    // ["could play the guitar beautifully", `To be able to play the guitar beautifully`],
+    // ["will have finished the report by tomorrow", `To have finished the report by tomorrow`],
+    // ["has been working out regularly", `To have been working out regularly`],
+    // ["was going to call you later", `To have been going to call you later`],
+    // ["might have left the keys in the car", `To have left the keys in the car`],
+    // ["is starting to understand the concept", `To be starting to understand the concept`],
+    // ["should be doing the homework now", `To be doing the homework now`],
+    // ["would have been upset if you didn't show up", `To have been upset if you didn't show up`],
+    // ["has been trying to quit smoking", `To have been trying to quit smoking`],
+    // ["can't wait to see the new movie", `To not be able to wait to see the new movie`],
+    // ["were hoping for a positive outcome", `To have hoped for a positive outcome`],
+    // ["could have told me the truth", `To have told me the truth`],
+    // ["wouldn't dare to break the rules", `To not dare to break the rules`],
+    // ["is looking forward to the trip", `To be looking forward to the trip`],
+    // ["should be resting after the surgery", `To be resting after the surgery`],
+    // ["might be studying for the exam", `To be studying for the exam`],
+    // ["have been meaning to call you", `To have been meaning to call you`],
+    // ["was wondering about the results", `To have wondered about the results`],
+  ]
+  arr.forEach(a => {
+    const doc = nlp(a[0])
+    doc.verbs().toInfinitive()
+    t.equal(doc.text(), a[1], here + ' ' + a[0])
+  })
+  t.end()
+})
+
+test('toInfinitive-coerced:', function (t) {
+  const arr = [
+    ['smoked', 'smoke'],
+    ['detailed', 'detail'],
+    ['tailored', 'tailor'],
+    ['controlled', 'control'],
+    ['recorded', 'record'],
+    ['trapped', 'trap'],
+    ['associated', 'associate'],
+    ['stunned', 'stun'],
+  ]
+  arr.forEach(a => {
+    const doc = nlp(a[0]).tag('PastTense')
+    doc.verbs().toInfinitive()
+    t.equal(doc.text(), a[1], here + ' ' + a[0])
+  })
+  t.end()
+})