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"how do you know" vs "how will you know"

Both phrases are correct, but they are used in different contexts. 'How will you know' is used when asking about a future event or action, while 'How do you know' is used when asking about a current or past situation. It's important to use the correct tense to match the timing of the event being discussed.

Last Updated: March 08, 2024

how do you know

This phrase is correct and is used when asking about a current or past situation.

This phrase is used to ask someone how they came to know something in the present or past.

Examples:

  • How do you know her?
  • How do you know that information?
  • How do you know he's not lying?

Alternatives:

  • How did you find out
  • How did you come to know
  • How did you discover

how will you know

This phrase is correct and is used when asking about a future event or action.

This phrase is used to inquire about how someone will come to know something in the future.

Examples:

  • How will you know if he's telling the truth?
  • How will you know when to leave?
  • How will you know if it's the right decision?

Alternatives:

  • How will you find out
  • How will you determine
  • How will you discover

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