~てくれませんか・~てもらえませんか
Ask someone politely to help by doing something
You'll be able to make considerate requests by framing the action as a favor.

この箱を持ってくれませんか。
kono hako o motte kuremasen ka.
What do you think this sentence means?
Could you carry this box for me?
Ask for a helpful action
~てくれませんか and ~てもらえませんか are requests for someone to do something for you. Their negative-question shape softens the request.
もう一度説明してもらえませんか。
mou ichido setsumei shite moraemasen ka.
Could you explain it once more for me?
Form and use ~てくれませんか・~てもらえませんか
くれませんか asks whether the listener will give the favor. もらえませんか asks whether you can receive it. These are not usually literal questions expecting refusal; more deferential requests can use いただけませんか.
もう一度説明してもらえませんか。
mou ichido setsumei shite moraemasen ka.
Could you explain it once more for me?
窓を閉めてくれませんか。
mado o shimete kuremasen ka.
Could you close the window for me?
すみません、この荷物を棚に上げてくれませんか。
sumimasen, kono nimotsu o tana ni agete kuremasen ka.
Excuse me, would you put this bag up on the rack for me?
すみません、もう少し静かにしてくれませんか。
sumimasen, mou sukoshi shizuka ni shite kuremasen ka.
Excuse me, would you mind being a little quieter?
暑いですね。窓を開けてくれませんか。
atsui desu ne. mado o akete kuremasen ka.
It's hot, isn't it? Would you open the window for me?
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