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Hello, teachers!

Which is more idiomatic in the everyday conversation?
1. Would you fix my car by this weekend?
2. Would you have fixed my car by this weekend?
3. Would you have my car fixed by this weekend?

Thank you very much.
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"Which is more idiomatic in everyday conversation?" (no "the" Emotion: smile )

I'd say the third one is the best, but even that one is not as idiomatic as others not listed.

More idiomatically, I'd use

[Will / Can / Could] you have my car fixed by this weekend?

or

Do you think you [will / can / could / might] have my car fixed by this weekend?

But "might" is so weak as to appear to be pleading. With "might" you might never get your car fixed!

Emotion: smile
CJ
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But "might" is so weak as to appear to be pleading. With "might" you might never get your car fixed!

<<<<<<<<<<<<<<<<<<<

Hmmmmmmm, so 'might' is weak, eh Jim? Curious that.Emotion: wink
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Comments  
Thank you very much, Jim!
[plus] No 'the' with 'conversation'; I will keep it!

Enjoy a spring frost!
 just the truth's reply was promoted to an answer.
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"might" it depend on a pre-cog responce? often when a sentance is given there are a set of applied answers. the possible answers are overlooked as also being part of the question. in english speaking countries we do not always reply with a grammatically correct verbal responce. i think "might" can be a position of power and weakness with the right position, stress and implementation.