🎁 A holiday package to celebrate the season! Click here and shop now!

TextRanch

The best way to perfect your writing.

Discover why 1,062,726 users count on TextRanch to get their English corrected!

1. Input your text below.
2. Get it corrected in a few minutes by our editors.
3. Improve your English!

One of our experts will correct your English.

Our experts

how long did you know? vs how long do you know about it?

The correct phrase is "How long did you know?" This is the standard way to ask about the duration of someone's knowledge. The second phrase, "How long do you know about it?" is not correct in English.

Last updated: March 25, 2024 • 1134 views

how long did you know?

This phrase is correct and commonly used in English to inquire about the duration of someone's knowledge.

This phrase is used to ask about the length of time someone has been aware of something or someone.

how long do you know about it?

This phrase is not correct in English. The correct form would be "How long have you known about it?"

The correct way to ask about the duration of someone's knowledge is by using the present perfect tense, as in "How long have you known about it?"
  • What do you know about long term relationships?
  • How long you know about this?
  • - What do you know about it?
  • How do you know about it? - Well, I sing there for open-mike night.
  • What do you know about it?
  • What do you know about it?
  • What do you know about it?
  • So how do you know about it?
  • What do you know about it?
  • - What do you know about it?
  • What do you know about it?
  • - What do you know about it?
  • What do you know about it? Agent Eppes, I am as mystified as you are.
  • What do you know about it?
  • What do you know about it?
  • What do you know about it?
  • What do you know about it?
  • What do you know about it?
  • What do you know about it?
  • What do you know about it?

Alternatives:

  • How long have you known about it?

Related Comparisons

What Our Customers Are Saying

Our customers love us! We have an average rating of 4.79 stars based on 283,125 votes.
Also check out our 2,100+ reviews on TrustPilot (4.9TextRanch on TrustPilot).

Why choose TextRanch?

Lowest prices
Up to 50% lower than other online editing sites.

Fastest Times
Our team of editors is working for you 24/7.

Qualified Editors
Native English experts for UK or US English.

Top Customer Service
We are here to help. Satisfaction guaranteed!

×

💝 TextRanch Holidays Offer! 💝️

25% special discount
Stock up on credits for the entire year!

Grab this offer now!