1. 一般情况与过去式一样,直接加ed或d (以y结尾把y改为I,再加ed) 2. AAA型(动词原形,过去式,过去分词同形) cost-cost-cost cut-cut-cut hit-hit-hit hurt-hurt-hurt let-let-let put-put-put read-read-read AAB型(动词原形与过去式同形) beat-beat-beaten ABA型(动词原形与过去分词同形) become-became-become come-came-come run-ran-run ABB型(过去式与过去分词同形) dig-dug-dug get-got-got sit-sat-sat win-won-won meet-met-met keep-kept-kept sleep-slept-slept sweep-swept-swept feel-felt-felt smell-smelt-smelt leave-left-left build-built-built lend-lent-lent send-sent-sent spend-spent-spent lose-lost-lost burn-burnt-burnt catch-caught-caught fight-fought-fought learn-learnt-learnt teach-taught-taught buy-bought-bought sell-sold-sold mean-meant-meant bring-brought-brought think-thought-thought hear-heard-heard tell-told-told say-said-said find-found-found have/has-had-had make-made-made stand-stood-stood understand-understood-understood ABC型(动词原形,过去式与过去分词三者不同) begin-began-begun drink-drank-drunk ring-rang-rung sing-sang-sung swim-swam-swum blow-blew-blown draw-drew-drawn fly-flew-flown grow-grew-grown know-knew-known throw-threw-thrown show-showed-shown break-broke-broken choose-chose-chosen forget-forgot-forgotten speak-spoke-spoken wake-woke-woken drive-drove-driven eat-ate-eaten fall-fell-fallen give-gave-given rise-rose-risen take-took-taken mistake-mistook-mistaken ride-rode-ridden write-wrote-written do-did-done go-went-gone see-saw-seen wear-wore-worn 本文来源：https://www.wddqw.com/doc/91eed77a27284b73f24250ca.html