15个不规则动词过去时
问题描述：
15个不规则动词过去时
答
am/is--wasare--werecome--camedo--didgo--wentbuy--boughtthink--thoughtteach--taughtspend--spentmake--madefeel--feltbegin--beganknow--knewwrite--wroteput--putread--readleave--lefthave--had