1、不规则动词形式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/-readred-readred 2.A-A-B型（现在式和过去式同形） beat-beat-beaten 3.A-B-A型（现在式和过去分词同形） come-came-come become-became-become run-ran-run 4.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-buil
2、t lend-lent-lent send-sent-sent spend-spent-spent burn-burnt/burned-burnt/burned learn-learnt/learned-learnt/learned mean-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-thought fight-fought-fought catch-caught-caught teach-taug
3、ht-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-left say-said-said meet-met-met spell-spelt-spelt smell-smelt/smelled-smelt/smelled hold-held-held feel-felt-felt （4）其他 dig-dug-dug find-found-found stand-stood-stood understand-understood-understo
4、od get-got-got sit-sat-sat spoil-spoilt-spoilt have/has-had-had sell-sold-sold tell-told-told hang-hanged/hung-hanged/hung hear-heard-heard make-made-made pay-paid-paid lay-laid-laid lie（说谎）-lied-lied lose-lost-lost shine-shone/shined-shone/shined win-won-won shoot-shot-shot 5.A-B-C型（现在式、过去式和过去分词都不相
5、同） （1）in、im 的变化（i-a-u 型） sing-sang-sung ring-rang-rung begin-began-begun drink-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 ow 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-thrown blow-blew-blown grow-grew-grown fly-flew-flown 元音是 i的开音节的变化（过去分词以 en结尾）
6、drive-drove-driven rise-rose-risen ride-rode-ridden write-wrote-written give-gave-given 其他 see-saw-seen eat-ate-eaten take-took-taken fall-fell-fallen freeze-froze-frozen show-showed-shown break-broke-broken speak-spoke-spoken wake-woke-woken choose-chose-chosen forget-forgot-forgotten lie（躺，放）-lay-lain wear-wore-worn be（am，is，are）-was/were-been （3）其他 go-went-gone do-did-done 6.有过去式，没有过去分词的动词 can-could may-might must-must shall-should will-would
