do some cleaning是一个固定词组,但是变为过去式的时候,不是应该把动词变成过去式吗可是这个词组的正确变法是did some cleaning,我想知道的是clean也是动词,可是它为什么就不用变成过去式呢?类似

是do some cleaning还是do some cleanings啊~为什么 do some cleaning造句 do some cleaning什么意思 do some cleaning 求中文翻译! Let’s doing some cleaning now是do还是doing clean和do some cleaning的区别 I do some cleaning on Sunday. Does he often do some cleaning? i do some cleaning on sunday一般疑问句 是不是 do you do some cleaning on sunday do some clean与do some cleaning有什么区别 do the cleaning和do some cleanig的区别 She stayed at home and____(do) some cleaning yesterday 用do some cleaning写一篇60字左右的作文 I____(help)my mother do some cleaning.说明原因哦~~~ i do some cleaning at night.的问句是什么 用do some cleaning写一篇60字左右的作文 Let's do some cleaning.的同义句? they will do some cleaning now同义句