〜に代わって ni kawatte
〜に代わって（ni kawatte）means “on behalf of ~; instead of ~”. Indicates that someone or something acts in place of, or as a substitute for, another. Formation: N + に代わって
on behalf of ~; instead of ~
N3Formation
N + に代わって
Explanation
Indicates that someone or something acts in place of, or as a substitute for, another. Often used when one person does something on behalf of someone who cannot.
Examples
病気の社長に代わって、副社長があいさつをした。
びょうきのしゃちょうにかわって、ふくしゃちょうがあいさつをした。
On behalf of the ill president, the vice president gave the greeting.
今は人間に代わって、ロボットがこの作業をしている。
いまはにんげんにかわって、ロボットがこのさぎょうをしている。
Nowadays robots do this work instead of humans.
Note
More formal variant: 〜に代わり. Don't confuse with 〜代わりに (in exchange/compensation).
FAQ
〜に代わって — what does it mean and how is it used?
on behalf of ~; instead of ~. Indicates that someone or something acts in place of, or as a substitute for, another. Often used when one person does something on behalf of someone who cannot.
〜に代わって — how do you form it?
N + に代わって
〜に代わって — any usage notes?
More formal variant: 〜に代わり. Don't confuse with 〜代わりに (in exchange/compensation).