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Hi,

1.Could you please keep/stay quiet when I study.

Are 'keep' and 'stay' interchangeable here? Is there any difference between them?

Can I use 'while' or 'as' instead of 'when' here? What is their difference if yes?

2.He fainted while he was
excercising.

Can I use 'when' or 'as' instead of ' while' here? Is there any difference between them?

3.He never stays angry for long.

Can I use 'keep' instead of 'stay' here? What is the difference between them?

Thank you very much.
Comments  
Anonymous1.Could you please keep/stay quiet when I study.
Are 'keep' and 'stay' interchangeable here? Is there any difference between them? Yes and yes. (my opinion) If you wish to express more politeness, use "stay." If you wish to express more anger, or rudeness, use "keep." "Stay" could mean simply "remain quiet." "Keep" often means "get quite and remain quite."

Can I use 'while' or 'as' instead of 'when' here? What is their difference if yes? I'd say, "while" but not "as." "When" could mean "whenever." "While" would usually mean "on this particular occasion."

2.He fainted while he was excercising.

Can I use 'when' or 'as' instead of ' while' here? Is there any difference between them? I'd recommend against it, but it's possible.

3.He never stays angry for long.

Can I use 'keep' instead of 'stay' here? What is the difference between them? "Keep" is rare in my experience. It seems to have more of a sense of initiating than does "stay," as in "Why do you keep yelling?"
Hi Avangi,

Thank you very much for your kind reply.

1. Do you mean 'stay' sounds more polite and 'keep' sounds more rude?
2.Could you please keep quiet when I study.
Does 'keep' mean 'get quite and remain quite' here?
3.Could you please stay quiet when I study.
Does 'stay' mean 'remain quite' here?
4.Could you please keep quiet when/while I study.
Do you mean when and while mean the same here?
5.He fainted while he was excercising.
Do you mean it's better not to use when or as here? And do you mean when or as are ok here?
6."Keep" is rare in my experience. It seems to have more of a sense of initiating than does "stay,"
What do you mean by 'initiating'?
7.Mary sings while/as/when she works.
Do while, as and when all work here? Could you please tell me their difference?
8.Eat right to stay/keep healthy.
What is the difference between stay and keep here?
9.You should stay as calm as possible when there's an earthquake.
Can I use 'keep' here? Is there any difference between them?
Can I use 'while' or 'as' instead of 'when' here?

Thank you very much.
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Hi, Can anyone please help me with my questions above? I would appreciate your kind help.
What means quo?
Hi,
What means quo? What does 'quo' mean?

It's not an English word. It's Latin.

It appears in Latin phrases that are used in English, eg status quo, quid pro quo. Look them up, and pst again if you need more help.

But start a new thread, please.

Clive
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Keep and Stay are different in future action conditions, here is how:

Stay: Means the current state is the goal. ex. Stay here, meaning you are here, this is the destination, non-action request
Keep: Means to activly prevent future change. ex. Keep quiet, action may be required to prevent noise in the future