Past Tense of Thrive
“Thrive” has both regular-looking and irregular recorded forms. Cambridge gives thrived, with US also throve, for the simple past and thrived, with US also thriven, for the participle. Merriam-Webster likewise records thrived/throve and thrived/thriven. Preserve those documented alternatives without turning dictionary order into an unsupported universal preference.
The simple past can be “thrived”; Cambridge also records US “throve.” The past participle can be “thrived”; Cambridge also records US “thriven.”
Key details
Choose the right form
| Meaning / situation | Form / construction | Decision |
|---|---|---|
| simple past | thrived / US also throve | Both are documented; Cambridge marks “throve” US also. |
| past participle | thrived / US also thriven | Both are documented; Cambridge marks “thriven” US also. |
| present/base-form context | thrive | Use “thrive” when a past form is not required. |
Quick tests
Verb-form test
Does the sentence require a simple-past form of “thrive”?
If yes: Use documented “thrived”; Cambridge also records US “throve.”
If no: If grammar requires a past participle, use documented “thrived”; Cambridge also records US “thriven.”
Caveat: The source boundary is form-and-region specific. Do not convert source ordering into an unsupported frequency or correctness hierarchy.
Examples
The small business thrived after the move.
“Thrived” is a documented simple-past form.
The plants have thrived in the warmer room.
“Thrived” is a documented past participle.
The old account said the settlement throve for several years.
“Throve” is a recorded past form; Cambridge marks it as US also.
Further guidance
Core difference
First decide whether you need simple past or a participle. Cambridge specifically marks “throve” and “thriven” as US-also forms; “thrived” is documented in both roles.
Fast Test
Do not use “thriven” as a finite simple-past form, and do not infer a universal preference from dictionary ordering. Preserve Cambridge’s explicit US-also boundary for “throve” and “thriven.”
Usage Boundary
The only regional distinction asserted here is Cambridge’s explicit US-also marking for “throve” and “thriven.”
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.
- THRIVE Definition & Meaning - Merriam-Webster (opens in a new tab)Merriam-Webster · Merriam-Webster records thrived or throve as past forms and thrived also thriven as participial forms of thrive.
- THRIVE | English meaning - Cambridge Dictionary (opens in a new tab)Cambridge University Press · Cambridge records thrived, with US also throve, for the past and thrived, with US also thriven, for the participle.