PRESENT PERFECT with JUST, ALREADY, YET and JUST
JUST: a short time ago.
Would you like something to eat?
No thanks, I’ve just had lunch.
ALREADY: some time before now.
She has already booked a table. (She did it some time before now).
Don’t forget to post the letter, will you? I’ve already posted it.
YET: the speaker is expecting something to happen: to ask if something has happened or to say that something has happened.
Has it stopped raining yet?
I haven’t told them about the accident yet.
Has she arrived yet?
I’m hungry. Is dinner ready yet?
Have you finished your homework yet?
It’s ten o’clock and Tom hasn’t got up yet.
SINCE and FOR
We use since and for to say how long something has been happening.
Since: we use since when we say the beginning of a period of time.
For: we use for when we are talking about a period of time.
SINCE | FOR |
1977 17th November Monday April Christmas lunchtime we arrived 14:00 o’clock last Saturday | 2 hours 10 minutes 3 days 6 months a week a long time 5 years ages a day |
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