Why you didn’t sleep vs Why you don’t sleep

Both phrases are correct, but they are used in different contexts. 'Why you didn’t sleep' is used to inquire about a specific past event, while 'Why you don’t sleep' is used to ask about a habitual action or behavior. Therefore, the choice between the two depends on whether you are referring to a particular instance in the past or a general pattern of behavior.

Last updated: March 28, 2024 • 599 views

Why you didn’t sleep

This phrase is correct and is used to inquire about a specific past event.

This phrase is used to ask about the reason for not sleeping on a particular occasion in the past.

Examples:

Why you didn’t sleep last night?

Alternatives:

Why didn’t you sleep?

Why you don’t sleep

This phrase is correct and is used to ask about a habitual action or behavior.

This phrase is used to inquire about the reason for not sleeping as a general habit or pattern.

Examples:

Why you don’t sleep well?

Alternatives:

Why don’t you sleep?

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Why you didn’t sleep vs Why you don’t sleep