Learn useful ways to say "i couldn't have" in English with drama examples and natural alternatives.

It means the speaker is saying the other person's help was essential.
From I Think My Wife Wants To Kill Me S2, Episode 60
The speaker thanks someone by saying they could not have succeeded without them.
Use this to thank someone for major support or help. It is warm and natural, but the line is a bit long for a standalone phrase page.
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