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"not sure if I understand" vs "not sure if I understood"

Both phrases are correct, but they are used in different contexts. 'Not sure if I understand' is used when someone is currently unsure about their understanding of something, while 'Not sure if I understood' is used when someone is unsure if they understood something in the past.

Last Updated: March 25, 2024

not sure if I understand

This phrase is correct and commonly used in English.

This phrase is used when someone is currently unsure about their understanding of something.

not sure if I understood

This phrase is correct and commonly used in English.

This phrase is used when someone is unsure if they understood something in the past.

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