不规则动词1.A-A-A 型（无变化的动词）cut-cut-cut let-let-let hit-hit-hit put-put-put cost-cost-cost hurt-hurt-hurt read/rid/-read[red]-read[red]2.A-A-B 型（现在式和过去式同形）beat-beat-beaten3.A-B-A 型（现在式和过去分词同形）come-came-comebecome-became-becomerun-ran-run4.A-B-B 型（动词的过去式与过去分词相同）（1）词尾的“d”变为“t”或词尾是“n”加“t”build-built-built lend-lent-lent send-sent-sent spend-spent-spentburn-burnt/burned-burnt/burned learn-learnt/learned-learnt/learnedmean-meant-meant（2）把原形变为 aught 及 ought 的变化（如果原形有 a 则是 aught，无 a 则是 ought）buy-bought-bought bring-brought-brought think-thought-thoughtfight-fought-fought catch-caught-caught teach-taught-taught（3）eep 变 ept 或过去式、过去分词含有/e/音的动词keep-kept-kept sleep-slept-slept sweep-swept-swept leave-left-leftsay-said-said meet-met-met spell-spelt-speltsmell-smelt/smelled-smelt/smelled hold-held-held feel-felt-felt（4）其他dig-dug-dug find-found-found stand-stood-stoodunderstand-understood-understood get-got-got sit-sat-satspoil-spoilt-spoilt have/has-had-had sell-sold-sold tell-told-told hang-hanged/hung-hanged/hung hear-heard-heard make-made-madepay-paid-paid lay-laid-laid lie（说谎）-lied-lied lose-lost-lostshine-shone/shined-shone/shined win-won-won shoot-shot-shot5.A-B-C 型（现在式、过去式和过去分词都不相同）（1）in、im 的变化（i-a-u 型）sing-sang-sung ring-rang-rung begin-began-begundrink-drank-drunk swim-swam-swum sink-sank-sunk（2）在动词原形后加－n 或－en 构成过去分词①ow 及 aw 的变化（过去式以 ew 结尾，过去分词以 wn 结尾）draw-drew-drawn know-knew-known throw-threw-thrownblow-blew-blown grow-grew-grown fly-flew-flown② 元音是 i 的开音节的变化（过去分词以 en 结尾）drive-drove-driven rise-rose-risen ride-rode-riddenwrite-wrote-written give-gave-given③ 其他see-saw-seen eat-ate-eaten take-took-taken fall-fell-fallen freeze-froze-frozen show-showed-shown break-broke-broke...
