1.无变化,过去式与原形相同。
let→let, put→put, hit→hit, must→must, set→set, beat→beat, cast→cast, cost→cost, cut→cut, hurt→hurt, read→red, shut→shut(shed→shed split→split spread→spread burst→burst)
2.元音字母的变化。
(1) a→oo:take→took, shake→shooke
(2) o:get→got, forget→forgot
(3) o→a:come→came, become→became
(4) oo→o:shoot→shot, choose→chose
(5) i→ou:find→found (wind→wound, bind→bound, grind→ground)
(6) i→a:begin→began, drink→drank, ring→rang, sing→sang, swim→swam, give→gave, sit→sat, sink→sank
(7) i→o:drive→drove, ride→rode, shine→shone, write→wrote, rise→rose, win→won,(strive→strove arise→arose)
3.元音字母组合的变化。
aw/ow/y→ew:draw→drew, blow→blew, grow→grew, know→knew, throw→threw, fly→flew
4.元音字母和辅音字母都有变化。
(1) catch→caught, teach→taught
(2) sell→sold, tell→told, retell→retold
(3) can→could, will→would, shall→should
(4) say→said, pay→paid, lay→laid, relay→relaid
(5) sweep→swept, keep→kept, sleep→slept, creep→crept
(6) bring→brought, buy→bought, think→thought, fight→fought
5.辅音字母变化。
(1)mean→meant, learn→learnt
(2)make→made, have→had, hear→heard
(3)build→built, send→sent, bend→bent, lend→lent, rend→rent, spend→spent