English verbs conjugation

Features

Agreement of English verbs, based on a few rules and on linguistic resources.

You have to import and provide independently linguistic resources:

• use english-verbs-irregular for a list of irregular verbs (with their preterit and past participle)
• use english-verbs-gerunds for a list of irregular gerunds (ing)

These resources are not declared as dependencies so that they are not automatically bundled in a browser package.

If you do not provide linguistic resources, very basic rules will be used: adding ing for gerunds, and ed for past and participles.

Usage

getConjugation will return the conjugated verb based on:

• information about irregular verbs (preteric, past participle and gerund):
  • you can just put null if you don't care about irregular verbs, or if your tenses don't require them (only SIMPLE_PRESENT and SIMPLE_FUTURE)
  • other provide irregular verbs info, using english-verbs-irregular, and/or english-verbs-gerunds, using the provided helper mergeVerbsData
• the verb as a string
• the tense
• the person: 0=I, 1=you (singular), 2=he/she/it, 3=we, 4=you (plural), 5=they.
• ExtraParams:
  • for SIMPLE_FUTURE, you can add { GOING_TO: true } to trigger the going to form; default is { WILL: true }
  • use { NEGATIVE: true } to trigger the negative form; additionnaly add CONTRACT: true to get the contracted version (will not => won't, etc.); when using the verb to have, you can choose whether to generate hasn't or does not have using NO_DO: true

Available tenses are: SIMPLE_PAST (or PAST), SIMPLE_PRESENT (or PRESENT), SIMPLE_FUTURE (or FUTURE), PROGRESSIVE_PAST, PROGRESSIVE_PRESENT, PROGRESSIVE_FUTURE, PERFECT_PAST, PERFECT_PRESENT, PERFECT_FUTURE, PERFECT_PROGRESSIVE_PAST, PERFECT_PROGRESSIVE_PRESENT, PERFECT_PROGRESSIVE_FUTURE.

mergeVerbsData will simply combine irregular verbs info and gerunds, to be used in getConjugation. In practice you will have swim: ['swam', 'swum', 'swimming'], here combining an irregular preterit, past participle and gerund. Parameters:

• VerbsIrregularInfo: use english-verbs-irregular, or null (irregular verbs are only required for some tenses)
• GerundsInfo: use english-verbs-gerunds, or null (gerunds are only required for some tenses)

Limitations

• no interrogative form
• modals

Installation

npm install english-verbs-helper

Usage

const EnglishVerbs = require('english-verbs-helper');
const Irregular = require('english-verbs-irregular/dist/verbs.json');
const Gerunds = require('english-verbs-gerunds/dist/gerunds.json');

const VerbsData = EnglishVerbs.mergeVerbsData(Irregular, Gerunds);

// (he/she) eats
console.log(EnglishVerbs.getConjugation(null, 'eat', 'PRESENT', 2));

// (he/she) ate
console.log(EnglishVerbs.getConjugation(VerbsData, 'eat', 'SIMPLE_PAST', 2));

// swimming
console.log(EnglishVerbs.getIngPart(VerbsData, 'swim'));