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Can 's mean was ?.For instance,someone came to visit me and it was late,so I tell him "It's time to leave.",can we say that 's is was ?
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No. There's no contraction for "was". Of course, you can contract the negative form was not (wasn't).
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everlastinghopeCan 's mean was ?.For instance,someone came to visit me and it was late,so I tell him "It's time to leave.",can we say that 's is was ?
No. "It's time to leave" can only mean "It is time to leave". And anyway, why would you tell him, "It was time to leave"? The time to leave is at the very moment of your saying it -- not in the past. Emotion: smile

CJ
Here's the sentence where I found "it's time" which I think is in the past.

You're being very childish;it's time you both grew up(you and your wife)

If 's is is,,why the verb" grew" is in the past ?
"It's time" means "In my opinion, you should do X now." Oddly, it takes the past form of the verb.

It's time you went to bed.
It's time he grew up.
It's time we faced the truth.
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Grammar Geek"It's time" means "In my opinion, you should do X now." Oddly, it takes the past form of the verb.

It's time you went to bed.

It's time he grew up.

It's time we faced the truth.


Still confused !!You're saying "in my opinion,you should do x now",why the past tense is used ?
It's time you went to bed. (the verb went is a past subjunctive)

Subjunctives are usually used in expressing wishes, requests, commands etc. This is a rather complex topic. You can find more info here http://www.wordpower.ws/grammar/gramch09.html

Of course, you can change the past subjunctive went into the present infinitive go like I did in the following sentence

It's time for you to go to bed.
Ivanhr
It's time you went to bed. (the verb went is a past subjunctive)


Yeah I see.I got it now but it's too difficult to understand it and when to use it.

Thanks a lot for you all.
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