一句句子语法he (has not yet returned).he will (returned) in ten minutes.用短语动词be改写括号中的内容,isn't back yet.he will be back in ten minutes.我的问题是he isn't back yet是什么时态能改成he hasn't be back yet

一句句子语法he (has not yet returned).he will (returned) in ten minutes.用短语动词be改写括号中的内容,isn't back yet.he will be back in ten minutes.我的问题是he isn't back yet是什么时态能改成he hasn't be back yet
一句句子语法
he (has not yet returned).he will (returned) in ten minutes.用短语动词be改写括号中的内容,isn't back yet.he will be back in ten minutes.我的问题是he isn't back yet是什么时态能改成he hasn't be back yet

一句句子语法he (has not yet returned).he will (returned) in ten minutes.用短语动词be改写括号中的内容,isn't back yet.he will be back in ten minutes.我的问题是he isn't back yet是什么时态能改成he hasn't be back yet
能改成he hasn't be back yet
有了yet,这个句子就是现在完成时态