用before+ing形式与after+ing形式造句I read a few page of my book.Then I went to sleep.(Before) We walked for three hours.We were very tired.(After) Let’s have a cup of coffee.Then we’ll go out.(Let’s)

after、before后面加ING形式吗 用before+ing形式与after+ing形式造句I read a few page of my book.Then I went to sleep.(Before) We walked for three hours.We were very tired.(After) Let’s have a cup of coffee.Then we’ll go out.(Let’s) 请问after和before后面的动词要用ing吗?比如after he leaving 或before he leaving 用after或before before后面可以加句子吗?用什么形式?除了动词ing 还能加什么? Please check your homework before handing it in!中hand为什么用ing形式 用ing形式写 after doing?After (seeing) S.H.E,the fans became even more excited 为什么括号里用ing形式? after use是错误的吗,after是介词,后面接的动词不是应该用-ing形式吗? 什么时候after后的动词要用ing形式,什么时候就不用You should go back after you finish your srudies abroad,为什么finish不用ing形式什么时候用ing请举例谢谢! before从句用过去式,主句用过去完成时,那如果从句省略主语,动词是否用ing形式 英语中介词后面的动词为什么要用ing形式后面没有句子,只有一个单词比如：Before starting... Do you remember being here before?这句中为何用being?可以用came 的ing形式来代替吗? Close the windows well before going to bed.为什么before后要跟动词ing形式? before,after,until的用法与区别? 为什么会用ing形式? 为什么要用ing 形式 英语什么时候用ing形式