Verbalizer

The Verbalizer class provides a low‑level API to handle English verb conjugation between base, past tense, and past participle forms. It supports irregular verbs, regular conjugation rules, and allows you to extend or customize the behavior by adding new rules.

Features

• ✅ Convert verbs between base, past tense, and past participle forms.
• ✅ Built‑in default rules loaded on construction.
• ✅ Manage rules dynamically: addBaseRule(), addPastRule(), addParticipleRule(), addIrregular().
• ✅ Automatically handles irregular verbs (e.g. go → went → gone).
• ✅ Preserves case sensitivity of input verbs.

Import

import { Verbalizer } from 'toolbox-x/verbalizer';

Usage

Extending Rules

You can modify your instance without affecting others:

import { Verbalizer } from 'toolbox-x/verbalizer';

const myVerbalizer = new Verbalizer();

// Add a custom base rule
myVerbalizer.addBaseRule(/ied$/i, 'y');

// Add a custom past tense rule
myVerbalizer.addPastRule(/e$/i, 'ed');

// Add a custom past participle rule
myVerbalizer.addParticipleRule(/e$/i, 'ed');

// Add an irregular verb
myVerbalizer.addIrregular('swim', 'swam', 'swum');

API Reference

constructor()

Initializes with built‑in rules and irregular verbs.

toPast(verb)

Convert a verb to its past tense form.

toParticiple(verb)

Convert a verb to its past participle form.

toBase(verb)

Convert a verb to its base form.

isPast(verb)

Check if a verb is in past tense form.

isParticiple(verb)

Check if a verb is in past participle form.

isBase(verb)

Check if a verb is in base form.

addBaseRule(rule, replacement)

Add a new base tense conjugation rule.

import { Verbalizer } from 'toolbox-x/verbalizer';

const myVerbalizer = new Verbalizer();
myVerbalizer.addBaseRule(/ied$/i, 'y');

addPastRule(rule, replacement)

Add a new past tense conjugation rule.

import { Verbalizer } from 'toolbox-x/verbalizer';

const myVerbalizer = new Verbalizer();
myVerbalizer.addPastRule(/e$/i, 'ed');

addParticipleRule(rule, replacement)

Add a new past participle conjugation rule.

import { Verbalizer } from 'toolbox-x/verbalizer';

const myVerbalizer = new Verbalizer();
myVerbalizer.addParticipleRule(/e$/i, 'ed');

addIrregular(base, past, participle)

Add an irregular verb.

import { Verbalizer } from 'toolbox-x/verbalizer';

const myVerbalizer = new Verbalizer();
myVerbalizer.addIrregular('swim', 'swam', 'swum');

See Also

• Pluralizer — Similar class for noun pluralization.