*They can have been so drunk that they didn't notice their car had been stolen. (pred adj) *They can have been doctors; they weren't wearing nurse's uniforms. (pred noun) *It can have …
When talking about possibilities in the past, You often use "could have done". "She could have gone to the theatre with him." "He couldn't have done such a thing!" "I could have saved them." …
All the modal verbs (can/could, may/might, must, shall/should, will/would) can take HAVE as a complement, and HAVE may act either as a lexical verb or as a perfect/pastmarking …
In a restaurant you can simply say "I'll have the swordfish, please"; "Can I" isn't wrong but really presumes that there may be some stumbling block, which frankly could be taken as a bit of …
2023年10月6日 · If you have already done it and it didn't work, let go to another method. >>Restart the security center service. 1). Press the Windows key + R to open the Run dialog. Type …
更多内容请点击：differences - can't have been vs. couldn't have been - English Language ...