teach(教)→taught→taught

tell(告诉)→told→told

think(思想)→thought→thought

understand(懂得)understood→understood

weep(哭泣)→wept→wept

win(战胜)→won→won

第三类 A→B→C型(52个)

arise(起来)→arose→arisen

be(是)→was/were→been

bear(生育、忍受)bore→born/borne

begin(开始)→began→begun

bite(叮、咬)→bit→bitten

blow(吹)→blew→blown

break(打破)→broke→broken

choose(选择)→chose→chosen

crow(啼叫)→crew→crown

do(做)→did→done

draw(绘画、拉)→drew→drawn

drink(喝)→drank→drunk/drunken

drive(开车、驱赶)→drove→driven

eat(吃)→ate→eaten

fall(倒下)→fell→fallen

fly(飞)→flew→flown

forbid(禁止)→forbade→forbidden