~(さ)せてください
Please let me do this
You'll be able to ask permission to take an action while showing that the decision belongs to the listener.

私に手伝わせてください。
watashi ni tetsudawasete kudasai.
What do you think this sentence means?
Please let me help.
Ask to be allowed to act
Causative て-form + ください asks permission for the speaker to perform an action. It often translates as “please let me.”
もう一度説明させてください。
mou ichido setsumei sasete kudasai.
Please let me explain once more.
Form and use ~(さ)せてください
Make the causative first: 説明する→説明させる→説明させてください. The speaker is normally the person asking to act, not someone requesting that a third person be forced.
もう一度説明させてください。
mou ichido setsumei sasete kudasai.
Please let me explain once more.
ここで少し休ませてください。
koko de sukoshi yasumasete kudasai.
Please let me rest here for a while.
今日は私に払わせてください。
kyou wa watashi ni harawasete kudasai.
Please let me pay today.
熱があるので、今日は早く帰らせてください。
netsu ga aru node, kyou wa hayaku kaerasete kudasai.
I have a fever, so please let me go home early today.
その仕事、ぜひ私にやらせてください。
sono shigoto, zehi watashi ni yarasete kudasai.
Please let me do that job.
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