题目内容：

把下列单变为过去式,现在分词,单数第三人称形式 play do go study be have like clean
practise read

优质解答

过去式：加ed现在分词：加ing单三：加splay,played,playing,playsdo,did,doing,doesgo,went,going,goesstudy,studied,studying,studiesbe,was/were,being,ishave,had,having,haslike,liked,liking,likesclean,cleane...