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Often from the movie we hear that the actors and actresses suddenly use the past tense in thier speechs. I just don't know what is the grammar rule behind that. Following are the exapmles:

a) Actor: Look, it's time we forgot :-s about the rule.
b) Actress: Honey, I think it's timeI met :-s all your friend.
c) Actress: I think it's time we told :-s them the truth.

Could you tell me why they suddenly use the past tense?
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This has nothing to do with acting or actors.
The expression "it's time" is normally followed by a clause in the past tense. It can also be followed by a clause in the present tense, but the past tense is more common. Whichever tense is used, the meaning is the same.

This turn of phrase is a substitute for the "for ... to ..." structure.

"It's time we forgot about the rule" = "It's time we forget about the rule." = "It's time for us to forget about the rule."
"I think it's time I told them the truth" = "... time I tell them the truth." = "... time for me to tell them the truth."

The implication with these is that, whatever it is, it probably should have been done sooner.

Emotion: geeked
Comments  
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Thansk for your reply CalifJim. I got it.Emotion: big smile
What is the past form for heroine?
banana desk 923 What is the past form for heroine?

Heroine is a noun. It doesn't have a past tense. Only verbs have a past tense.

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