watch的过去式,visit的过去式

写出下列动词的过去式: go think be happen give become get rain
washed,watch,watched,一般直接在词尾 ed,fix,fixed,原形 过去式
sh, ch结尾的动词加-es: finish — finishes teach — teaches watch
被动语态由助动词be 过去分词构成,时态通过be表现出来.
动词过去式ppt