
“Fit” is correct as the simple past tense and the past participle. Verb Fit Past Fit / Fitted Past Participle Fit / Fitted When Is “Fit” Correct? Unlike some other irregular past tense verbs, it seems like “fit” is the same form depending on which language you write with.

Incidentally, both work as the simple past tense or the past participle, but it mostly comes down to whether using American or British English. This article will help you with those forms. It comes with two different past tense types, and we need to know how both work before we can use it correctly in a sentence. The past tense of “fit” is a little confusing because it’s an irregular verb form.
