📝 Word Forms

English Word Forms

Master 8,600+ word conjugations and inflections

Try searching for a base word or any of its forms

Explore the complete rules for English word form changes. Choose a category below to get started.

Verb Conjugation

3rd person singular, past tense, present participle rules and 119 irregular verbs by CEFR level.

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Noun Plurals

Regular plural rules, irregular plurals, and unchanged plural nouns.

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Adjective Comparison

Comparative and superlative forms for regular and irregular adjectives.

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Frequently Asked Questions

What are word forms?
Word forms are different grammatical variations of a base word. For verbs, this includes conjugations like past tense and participles. For nouns, it includes plural forms. For adjectives, it includes comparative and superlative forms.
What's the difference between regular and irregular forms?
Regular forms follow predictable patterns (e.g., walk→walked, walks, walking). Irregular forms don't follow standard rules (e.g., go→went, gone; be→was, were, been).
Can I search by inflected forms?
Yes! You can search for any form of a word. For example, searching "went" will show you it's the past tense of "go", along with all other forms of that word.