did you know he was having an affair?请问这句子是过去完成时吗?不是的话是什么句型啊

did you know he was having an affair?请问这句子是过去完成时吗?不是的话是什么句型啊 He is having an affair.. HE is having an affair. 主语+be动词+动名词+名词,这个句子是什么结构?哪部分的知识?Halen is having an affair, did you know who he was looking after what time did you这个句型如果主语变成第三人称单数he的话,be动词did需要变换吗? how did you know i was lying是什么从句 Did you know ____?A.who he was looking after B.who was he lo he admitted having hunted a lion for a trophy...是过去完成时吗 翻译这句子及是什么句型!What did he do?he took cake and ate it quickly. Did he know when and where we were meeting?是什么句型? Why did you speak to Peter that way?Don't you know he is an