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    abbreviations.js adjectives.js convertables.js dates.js demonyms.js firstnames.js honourifics.js irregular_nouns.js irregular_verbs.js misc.js multiples.js numbers.js organisations.js phrasal_verbs.js places.js uncountables.js verbs.js fns.js index.js lexicon.js negate.js passive_voice.js contractions.js fancy_lumping.js grammar_rules.js parts_of_speech.js phrasal_verbs.js tagger.js word_rules.js question.js sentence.js statement.js tense.js adjective.js to_adverb.js to_comparative.js to_noun.js to_superlative.js adverb.js to_adjective.js is_acronym.js article.js date.js date_rules.js is_date.js parse_date.js is_plural.js is_uncountable.js noun.js is_organisation.js organisation.js gender.js is_person.js parse_name.js person.js is_place.js place.js pluralize.js pronoun.js singularize.js is_value.js numbers.js to_number.js units.js value.js term.js conjugate.js from_infinitive.js predict_form.js suffix_rules.js to_actor.js to_infinitive.js negate.js verb.js sentence_parser.js text.js

  • from_infinitive.js

  • ¶ 
    'use strict';

let rules = [
  {
    reg: /(eave)$/i,
    repl: {
      pr: '$1s',
      pa: '$1d',
      gr: 'eaving',
      ar: '$1r'
    }
  },
  {
    reg: /(end)$/i,
    repl: {
      pr: '$1s',
      pa: 'ent',
      gr: '$1ing',
      ar: '$1er'
    }
  },
  {
    reg: /(ide)$/i,
    repl: {
      pr: '$1s',
      pa: 'ode',
      gr: 'iding',
      ar: 'ider'
    }
  },
  {
    reg: /(ake)$/i,
    repl: {
      pr: '$1s',
      pa: 'ook',
      gr: 'aking',
      ar: '$1r'
    }
  },
  {
    reg: /(eed)$/i,
    repl: {
      pr: '$1s',
      pa: '$1ed',
      gr: '$1ing',
      ar: '$1er'
    }
  },

  {
    reg: /(e)(ep)$/i,
    repl: {
      pr: '$1$2s',
      pa: '$1pt',
      gr: '$1$2ing',
      ar: '$1$2er'
    }
  }, {
    reg: /(a[tg]|i[zn]|ur|nc|gl|is)e$/i,
    repl: {
      pr: '$1es',
      pa: '$1ed',
      gr: '$1ing',
      prt: '$1en'
    }
  }, {
    reg: /([i|f|rr])y$/i,
    repl: {
      pr: '$1ies',
      pa: '$1ied',
      gr: '$1ying'
    }
  }, {
    reg: /([td]er)$/i,
    repl: {
      pr: '$1s',
      pa: '$1ed',
      gr: '$1ing'
    }
  }, {
    reg: /([bd]l)e$/i,
    repl: {
      pr: '$1es',
      pa: '$1ed',
      gr: '$1ing'
    }
  }, {
    reg: /(ish|tch|ess)$/i,
    repl: {
      pr: '$1es',
      pa: '$1ed',
      gr: '$1ing'
    }
  }, {
    reg: /(ion|end|e[nc]t)$/i,
    repl: {
      pr: '$1s',
      pa: '$1ed',
      gr: '$1ing'
    }
  }, {
    reg: /(om)e$/i,
    repl: {
      pr: '$1es',
      pa: 'ame',
      gr: '$1ing'
    }
  }, {
    reg: /([aeiu])([pt])$/i,
    repl: {
      pr: '$1$2s',
      pa: '$1$2',
      gr: '$1$2$2ing'
    }
  }, {
    reg: /(er)$/i,
    repl: {
      pr: '$1s',
      pa: '$1ed',
      gr: '$1ing'
    }
  }, {
    reg: /(en)$/i,
    repl: {
      pr: '$1s',
      pa: '$1ed',
      gr: '$1ing'
    },
  },
  {
    reg: /(..)(ow)$/i,
    repl: {
      pr: '$1$2s',
      pa: '$1ew',
      gr: '$1$2ing',
      prt: '$1$2n'
    }
  }
];

let keys = {
  pr: 'present',
  pa: 'past',
  gr: 'gerund',
  prt: 'participle',
  ar: 'actor',
};

const from_infinitive = function(str) {
  let obj = {
    infinitive: str
  };
  if (!str || typeof str !== 'string') {
  • ¶

    console.log(str);

        return obj;
  }
  for(let i = 0; i < rules.length; i++) {
    if (str.match(rules[i].reg)) {
      Object.keys(rules[i].repl).forEach(function(k) {
        obj[keys[k]] = str.replace(rules[i].reg, rules[i].repl[k]);
      });
      return obj;
    }
  }
  return obj;
};
  • ¶

    console.log(from_infinitive(‘watch’));

    module.exports = from_infinitive;