Haven't refers to the past up until now. So if you haven't done something, you haven't done it for a specific period of time (day, month, ever, etc.) Didn't refers to a specific point of time that has already passed. For example, if it is 7 PM, you could say "I didn't eat dinner at 6" or "I haven't eaten dinner yet today". In both instances ...

2012年5月18日 · I haven't is much preferred to I've not. (The Longman student grammar of spoken and written English, 2002: 242) They haven't finished is more common than They've not finished (Greenbaum 1992: 684 in The Oxford companion to the English language) The Longman grammar of spoken and written English (1999) has Table A.8 in the appendix (on p. 1132).

2018年10月4日 · Do I say His classmates hasn’t been interviewed?” Or haven’t or hadn’t? It is pretty confusing to me, especially the past perfect, present participle

In context, haven't is the grammatically correct sentence. Hadn't would not make sense as the order of events ought to be preserved. Nevertheless, hadn't would make sense if something happened between the two events and the point at which they had yet to leave were mentioned by the other individual(s) in the conversation.

2019年3月17日 · She haven’t is wrong. If you refer to he, she, it you have to use has. If you refer to I, you, we, they, then you have to use have. If you hear he/she/ it have then the person speaking is either making a mistake either using some sort of slang (as a teacher once told me, even if I’m not sure this is correct)

Haven't, on the other hand, sounds a bit ambiguous (unclear). It indicates the present perfect tense, which doesn't make much sense when it follows the past tense indicating by got . It also breaks the construction made by the followed sentence.

Both verbs work: haven't works because it's referencing the time before you heard the current song, and hadn't works because it's referencing the last time you heard a song as good as this one. If you didn't hear the song you're talking about recently, you need to say that good, and the only verb that works in this case is hadn't.

I haven't slept since Monday. 2. I haven't had any sleep since Monday. Sometimes people will say I can't get any sleep...(with all the noise from downstairs).. It would be unusual to hear the past tense "got" in this context. As a very general rule "get, got and gotten" tend to be American, the last one exclusively American. –

In the last two weeks I haven't had much time, so I haven't got that quotation for you. In the last two weeks I haven't had much time, but I expect to be able to address your question soon. In colloquial use, however, particularly when the fairly recent past is concerned, you are likely to hear either form regardless of context.

2018年11月14日 · I think I understand what you're asking based on your title. It's equally correct to say "I haven't been here before..." and "I wasn't here before..." They have slightly different connotations, in that "wasn't here before" might be specific to a the single time you were near that place last, but they're more-or-less equivalent.