大部分是一样的，也有一些不一样的，需要特殊记忆
A—A—A型，即原形、过去式和
过去分词三者都相同.(共9个)cost—cost—cost cut—cut—cut hit—hit—hit hurt—hurt—hurt let—let—let put—put—put read—read—read set—set—set shut—shut—shut
A—B—B型，即过去式、过去分词相同.(共41个)1过去式和过去分词都含有-ought.(3个)bring—brought—broughtbuy— bought—bought
过去式、过去分词都含有-aught.(2个)catch—caught—caughtteach—taught—taught
把-eep变为-ept.(3个)keep—kept—keptsleep—slept—sleptsweep— swept—swept
把-ell变为-old.(2个)tell—told—toldsell—sold—sold
过去式、过去分词都含有-elt或-ilt.(4个)smell—smelt—smeltspell—spelt—speltfeel—felt— feltspill—spilt—spilt
过去式、过去分词都在原形词尾加t.(3个)learn—learnt—learntmean—meant—meantspoil—spoilt—spoilt
过去式、过去分词词尾是d.(4个)say—said—saidpay—paid—paidlay—laid—laidhear—heard—heard
改变
元音字母.(11个)meet—met—metget—got—gotsit—sat—satfind— found—foundhold—held—held等
还有一些，都需要特殊记忆