Learn what "i couldn't sit" means, when people say it, and how to use it naturally in English.

It means the speaker felt they had to act instead of doing nothing.
From Undercovered Heart, Episode 9
Someone explains they could not stay passive while a person they see as guilty was still free.
Use this to justify taking action when you feel passive waiting is not acceptable. It is natural in tense or moral arguments.
Scenes unlock real expressions as you watch
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