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"not sure how often" vs "not sure that how often"

The correct phrase is "not sure how often." The addition of "that" before "how often" is unnecessary and incorrect in this context.

Last Updated: March 29, 2024

not sure how often

This phrase is correct and commonly used in English.

This phrase is used to express uncertainty about the frequency of something happening.

Examples:

  • I'm not sure how often they visit their grandparents.
  • She's not sure how often the bus comes by this stop.
  • We're not sure how often the company holds these events.
  • He's not sure how often he should water the plants.
  • They're not sure how often they should exercise.

not sure that how often

This phrase is incorrect in English.

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