Giving advice

Dear Teachers,

If I would like to give an advice, can I say like the sentence below ?

You could have paid more attention to your appearance.

Your help is highly appreciated.

Thanks:-)

Quote:

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Originally Posted by kl004535

Dear Teachers,

If I would like to give an advice, can I say like the sentence below ?

You could have paid more attention to your appearance.

Your help is highly appreciated.

Thanks:-)

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Yes, that is a correct, and more polite, version of "You should have ..."