Which is correct:
"this is why" or "that's why"?

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this is why

This phrase is correct and commonly used in English.

Use "this is why" when explaining something that is closer in time or space to the current conversation.

Examples:

  • This is why I couldn't come to the party last night.
  • This is why we need to take action now.
  • This is why I love living in the city.
  • This is why we should be careful with our words.
  • This is why I prefer tea over coffee.

Alternatives:

  • That is why
  • It is for this reason that
  • For this reason
  • Hence,
  • Therefore,

that's why

This phrase is correct and commonly used in English.

Use "that's why" when explaining something that is more distant or abstract from the current conversation.

Examples:

  • That's why she didn't want to go to the party.
  • That's why we have to be careful with our spending.
  • That's why I prefer to work alone.
  • That's why we need to plan ahead.
  • That's why he decided to quit his job.

Alternatives:

  • This is why
  • It is for that reason that
  • For that reason
  • Hence,
  • Therefore,
Both "this is why" and "that's why" are correct and commonly used in English. The choice between them depends on the context and the proximity of the explanation to the current conversation. "This is why" is used when referring to something closer in time or space, while "that's why" is used when referring to something more distant or abstract.

Last updated: March 30, 2024

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