Writing & StyleRule guide

Regular Verb

A regular verb follows the productive English inflection pattern, especially by forming its past simple and past participle with -ed or -d, with ordinary spelling adjustments such as “study” → “studied.”

Quick answer

Regular verbs form their past simple and past participle with the regular -ed/-d pattern, subject to normal spelling rules.

Key details

Core Issueforming regular English verb inflections
Registergeneral English
Rule Familyverb forms

Important caveats

Scope Boundary

A verb is not regular merely because one form happens to look predictable; irregular verbs have lexically distinct past or participle forms that must be learned separately.

Further guidance

Application

Learn the base, -s, -ing, and -ed patterns together, including changes such as consonant + y → -ied and consonant doubling where applicable.

Core Rule

Regular verbs form the past simple and past participle with -ed (or -d when the base already ends in e), subject to normal spelling adjustments.

Sources and evidence

Sources are shown with the role they play in this guide. Historical or style-sensitive claims are kept within the evidence boundary described above.

  1. Verbs: basic forms — Cambridge Grammar (opens in a new tab)Cambridge University Press · Direct grammar guidance on regular verb forms, -ed past forms, -ing forms, and common spelling changes.

Related guides

Writing & Style

Irregular Verb

An irregular verb has past and/or past-participle forms that do not follow the ordinary regular -ed pattern and therefore must be learned as part of its paradigm. Irregularity mainly concerns inflectional form; the same verb can still follow ordinary present-tense syntax in other respects.

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