conditional perfect progressive造句

例句与造句

1. English also has a conditional perfect progressive ( " would have been writing " ).
2. For uses of specific perfect progressive ( perfect continuous ) constructions, see the sections below on the conditional perfect progressive.
3. The passive forms of certain of the combinations involving the conditional perfect progressive ( " it would have been being written " ).
4. Rather than the very rarely used awkward construction " It would have been being written ", the conditional perfect progressive can be expressed in the passive voice as in " It would have been in the process of being written ."
5. It's difficult to find conditional perfect progressive in a sentence. 用conditional perfect progressive造句挺难的