English UsageGrammar guide

Swelled vs. Swollen

Use “swelled” for the simple past. In perfect or passive-style participial uses, both “swelled” and “swollen” are recorded, while “swollen” is especially familiar for an enlarged state. Do not use “swollen” as the ordinary simple-past form: the dictionary inflection distinguishes simple past “swelled” from the participial alternatives.

Quick answer

Use “swelled” for the simple past. In perfect or passive-style participial uses, both “swelled” and “swollen” are recorded, while “swollen” is especially familiar for an enlarged state.

Key details

Confusion Familyvariable verb forms
Rule Familyverb inflection
Termsswell, swelled, swollen
Variant ScopeThe simple past of “swell” is “swelled”; dictionaries record both “swelled” and “swollen” as past participles.

Further guidance

Core difference

Use “swelled” for the simple past. In perfect or passive-style participial uses, both “swelled” and “swollen” are recorded, while “swollen” is especially familiar for an enlarged state.

Fast Test

For a simple past event, choose “swelled.” For a participle, check the construction and intended idiom rather than forcing one form everywhere.

Usage Boundary

Do not use “swollen” as the ordinary simple-past form: the dictionary inflection distinguishes simple past “swelled” from the participial alternatives.

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. Swell — Merriam-Webster (opens in a new tab)Merriam-Webster · Dictionary evidence that swell has past swelled and past participles swelled or swollen.

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