redid

Redid is the simple past tense form of the verb redo. Redo means to do something again or anew, so redid indicates that the act of doing again was completed in the past. The past participle form is redone, which is used with have/has/had to form perfect tenses, as in “We have redone the room.”

Etymology and form: redo is formed from the prefix re- plus the verb do. Because the root involves do, the past tense is redid rather than something like redoed. This makes redid an irregular past tense in the sense that it derives from do’s irregular pattern, despite the compound appearance of redo.

Usage: Redid is widely used in both American and British English. It can apply to a wide range of activities, including renovations, edits, redesigns, or any task that has been performed again. Examples: “She redid the painting after the critique.” “They redid the kitchen to improve energy efficiency.” In perfect tenses, the past participle redone is used: “We have redone the website.”

Notes: Do not confuse redid with redoed, which is generally considered incorrect. Hyphenation such as re-did is uncommon in modern usage. Redid remains the standard past tense form for the verb redo in contemporary English.