diff --git a/src/3-three/verbs/api/api.js b/src/3-three/verbs/api/api.js
new file mode 100644
index 0000000..2cfd367
--- /dev/null
+++ b/src/3-three/verbs/api/api.js
@@ -0,0 +1,175 @@
+import find from '../find.js'
+import coordinate from './conjugate/coordinate.js'
+import toJSON from './toJSON.js'
+import parseVerb from './parse/index.js'
+import toInf from './conjugate/toInfinitive.js'
+import toPast from './conjugate/toPast.js'
+import toParticiple from './conjugate/toParticiple.js'
+import toPresent from './conjugate/toPresent.js'
+import toFuture from './conjugate/toFuture.js'
+import toGerund from './conjugate/toGerund.js'
+import getSubject from './parse/getSubject.js'
+import getGrammar from './parse/grammar/index.js'
+import toNegative from './conjugate/toNegative.js'
+import { getTense } from './lib.js'
+
+
+const api = function (View) {
+  class Verbs extends View {
+    constructor(document, pointer, groups) {
+      super(document, pointer, groups)
+      this.viewType = 'Verbs'
+    }
+    parse(n) {
+      return this.getNth(n).map(parseVerb)
+    }
+    json(opts, n) {
+      const m = this.getNth(n)
+      const arr = m.map(vb => {
+        const json = vb.toView().json(opts)[0] || {}
+        json.verb = toJSON(vb)
+        return json
+      }, [])
+      return arr
+    }
+    subjects(n) {
+      return this.getNth(n).map(vb => {
+        const parsed = parseVerb(vb)
+        return getSubject(vb, parsed).subject
+      })
+    }
+    adverbs(n) {
+      return this.getNth(n).map(vb => vb.match('#Adverb'))
+    }
+    isSingular(n) {
+      return this.getNth(n).filter(vb => {
+        return getSubject(vb).plural !== true
+      })
+    }
+    isPlural(n) {
+      return this.getNth(n).filter(vb => {
+        return getSubject(vb).plural === true
+      })
+    }
+    isImperative(n) {
+      return this.getNth(n).filter(vb => vb.has('#Imperative'))
+    }
+    toInfinitive(n) {
+      return coordinate(this.getNth(n), 'infinitive', vb => {
+        const parsed = parseVerb(vb)
+        const info = getGrammar(vb, parsed)
+        if (info.isInfinitive) {
+          return vb
+        }
+        return toInf(vb, parsed, info.form)
+      })
+    }
+    toPresentTense(n) {
+      return coordinate(this.getNth(n), 'present', vb => {
+        const parsed = parseVerb(vb)
+        const info = getGrammar(vb, parsed)
+        if (info.isInfinitive) {
+          return vb
+        }
+        return toPresent(vb, parsed, info.form)
+      })
+    }
+    toPastTense(n) {
+      return coordinate(this.getNth(n), 'past', vb => {
+        const parsed = parseVerb(vb)
+        const info = getGrammar(vb, parsed)
+        if (info.isInfinitive) {
+          return vb
+        }
+        return toPast(vb, parsed, info.form)
+      })
+    }
+    toFutureTense(n) {
+      return coordinate(this.getNth(n), 'future', vb => {
+        const parsed = parseVerb(vb)
+        const info = getGrammar(vb, parsed)
+        if (info.isInfinitive) {
+          return vb
+        }
+        return toFuture(vb, parsed, info.form)
+      })
+    }
+    toGerund(n) {
+      return coordinate(this.getNth(n), 'gerund', vb => {
+        const parsed = parseVerb(vb)
+        const info = getGrammar(vb, parsed)
+        if (info.isInfinitive) {
+          return vb
+        }
+        return toGerund(vb, parsed, info.form)
+      })
+    }
+    toPastParticiple(n) {
+      return coordinate(this.getNth(n), 'participle', vb => {
+        const parsed = parseVerb(vb)
+        const info = getGrammar(vb, parsed)
+        if (info.isInfinitive) {
+          return vb
+        }
+        return toParticiple(vb, parsed, info.form)
+      })
+    }
+    conjugate(n) {
+      const { conjugate, toInfinitive } = this.world.methods.two.transform.verb
+      return this.getNth(n).map(vb => {
+        const parsed = parseVerb(vb)
+        const info = getGrammar(vb, parsed)
+        // allow imperatives like 'go!' to be conjugated here (only)
+        if (info.form === 'imperative') {
+          info.form = 'simple-present'
+        }
+        let inf = parsed.root.text('normal')
+        if (!parsed.root.has('#Infinitive')) {
+          const tense = getTense(parsed.root)
+          inf = toInfinitive(inf, vb.model, tense) || inf
+        }
+        return conjugate(inf, vb.model)
+      }, [])
+    }
+
+    /** return only verbs with 'not'*/
+    isNegative() {
+      return this.if('#Negative')
+    }
+    /**  return only verbs without 'not'*/
+    isPositive() {
+      return this.ifNo('#Negative')
+    }
+    /** remove 'not' from these verbs */
+    toPositive() {
+      const m = this.match('do not #Verb')
+      if (m.found) {
+        m.remove('do not')
+      }
+      return this.remove('#Negative')
+    }
+    toNegative(n) {
+      return this.getNth(n).map(vb => {
+        const parsed = parseVerb(vb)
+        const info = getGrammar(vb, parsed)
+        return toNegative(vb, parsed, info.form)
+      })
+    }
+    // overloaded - keep Verb class
+    update(pointer) {
+      const m = new Verbs(this.document, pointer)
+      m._cache = this._cache // share this full thing
+      return m
+    }
+  }
+  Verbs.prototype.toPast = Verbs.prototype.toPastTense
+  Verbs.prototype.toPresent = Verbs.prototype.toPresentTense
+  Verbs.prototype.toFuture = Verbs.prototype.toFutureTense
+
+  View.prototype.verbs = function (n) {
+    let vb = find(this)
+    vb = vb.getNth(n)
+    return new Verbs(this.document, vb.pointer)
+  }
+}
+export default api
diff --git a/tests/three/sentences/negative-sentences.test.js b/tests/three/sentences/negative-sentences.test.js
new file mode 100644
index 0000000..a9fed99
--- /dev/null
+++ b/tests/three/sentences/negative-sentences.test.js
@@ -0,0 +1,14 @@
+import test from 'tape'
+import nlp from '../_lib.js'
+const here = '[three/sentence-negative] '
+
+test('sentences.toPositive', function (t) {
+  const doc = nlp(`do not use reverse psychology.`)
+  doc.sentences().toPositive()
+  t.equal(doc.text(), 'use reverse psychology.', here + 'neg')
+
+  doc.sentences().toNegative()
+  t.equal(doc.text(), 'do not use reverse psychology.', here + 'back to neg')
+
+  t.end()
+})