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"Why I couldn't do it" vs "Why couldn't I do it"

The correct phrase is "why couldn't I do it". In English, the word order for questions is typically subject-auxiliary verb-main verb. Therefore, the auxiliary verb 'couldn't' should come before the subject 'I'. The second phrase, "why I couldn't do it", is not correct as it does not follow the standard question structure.

Last Updated: March 31, 2024

Why I couldn't do it

This phrase is not correct in English.

This phrase does not follow the standard question structure in English, where the auxiliary verb should come before the subject.

Why couldn't I do it

This phrase is correct and commonly used in English.

This phrase is the correct way to form a question in English, with the auxiliary verb 'couldn't' before the subject 'I'.

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