..
AAA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(read的原形和过去式、过去分词 读音不同[2] set-set-set shut-shut-shut ABB型
过去式、过去分词相同。(共42个)
1.过去式和过去分词都含有 -ought。(4个) bring—brought—brought buy—bought—bought think—thought—thought fight—fought—fought 2.词尾有-ild,-end时,只需把d变为t。(4个) build—built—built lend—lent— lent send—sent—sent spend—spent— spent 3.过去式、过去分词都含有 -aught。(2个) catch—caught—caught teach—taught—taught 4.把-eep、-eel变为-ept、-elt。(4个) keep—kept—kept sleep—slept—slept sweep— swept—swept feel—felt— felt 5.把-ell变为-old。(2个) tell—told—told sell—sold—sold 6.把-ell、-ill变为-elt或-ilt。(3个) smell—smelt—smelt spell—spelt—spelt spill—spilt—spilt 7.把-eed、-ead、-eet变为-ed或-et。(4个) feed—fed—fed lead—led—led speed—sped—sped meet—met—met 8.过去式、过去分词都在原形词尾加t。(6个) learn—learnt—learnt mean—meant—