几个单词的过去式 过去分词 现在分词 三单形式 ：bend blow break bring build burn burst buycan catch choose come cost cut deal dig do draw dream drink drive eat fall feed fight find fly forget freeze fix mix play

can-could,catch-caught-caught, choose-chose-chosen, come-came-come, cost-cost-cost, cut-cut-cut, deal-dealt-dealt, dig-dug-dug, do-did-done, draw-drew-drawn, dream-dreamt-dreamt, drink-drank-drunk, drive-drove-driven, eat-ate-eaten, fall-fell-fallen, feed-fed-fed, fight-fougt-fought, find-found-found, fly-flew-flown, forget-forgot-forgotten, freeze-froze-frozen, fix-fixed-fixed, mix-mixed-mixed, play-played-played, blow-blew-blown, break-broke-broken, bring-brought-brought, build-built-built, burn-burnt-burnt, burst-burst-burst, buy-bought-bought
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） AAA型（动词原形、过去式、过去分词同形）cost（花费） cost costcut（割） cut cuthit（打） hit hit hurt 伤害） hurt hurtlet（让） let let put（放） put putread （读） read read spread (伸展/ 传播)spre...