Making requests more polite
Can you water my plants while I'm on vacation?
Could you please...? / Is it ok if you...? / I was wandering if you could...
Can I borrow your notes to study?
Would it be ok if ....? / Is it all right if ...? / Is it ok with you if ...?
Can I use your cell phone to make a quick call?
Would you mind if ...? / Is it ok if...? / Would it be too much if...?