〜てください

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Combine ください ("please") with a て form verb to politely ask someone to perform an action for you.

E.g. 待まつ → 待まって → 待まってください "please wait"

In casual situations, ください can be dropped. This forms a casual request, which can be rude if used with strangers/one's superiors.

E.g. 待まつ → 待まって "wait"

Summary

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  ～てください is used to politely ask someone to perform a given action

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  ～て is used for casual requests