WebAug 4, 2024 · (similarly would have or could have) is a past modal verb used together with a perfect infinitive that expresses the action that one should have (would have, could have) done. "Should" is the past tense of "shall" (similarly, "would" is the past tense of "will" and "could" of "can"). When you use it together with a present-tense verb (e.g. WebAnswer (1 of 4): Sorry to disagree with the other posters, but the sentence you posted is grammatically correct. It would not be used very frequently. “How could he have done it?” would be the more common question. This question has a different meaning from the one that you asked about. Someone...
you can have done it or you could have done it? - TextRanch
Web(not can be true)) C4. We use ‘could have (done)‘ to talk about the past. (e.g. I’m so tired, I could sleep for a week. (now), I was so tired, I could have slept for a week. (past)) a. … WebJun 2, 2024 · It isn't natural to use can in that case: I would always use could, but I agree that I could say the longer as well as the natural form. If I want to make it clear that I am talking about the present, I might use She might have left, but not She can have left. However, in the negative, I could say She can't have left. – sidney weiss attorney
May Have Done/ Can Have Done. - englishforums.com
WebApr 9, 2011 · It should be 'could have done' which is the past of 'could'. 'have done' has the meaning someone else, probably a professional, will do it. In that context 'can have done' is correct. I don't think the poster meant that though. I might do = I am able to do that but I do not know whether I will or not. WebFeb 7, 2024 · Can/could, present and past tense, no IF clause or whether or other idea. How could I have done* that? is the past tense of: How can I do that?. How can you say she is rich [right now, present]? How could you say she was rich [yesterday]? Or: How could you have said she was rich?. Summary: present tense: can, simple past: could + … Web1 day ago · 0:29. Iowans could keep guns in their locked cars in the parking lots of schools, city and county buildings, state universities and prisons, under a bill passed Wednesday … sidney whiteheart uky