I can testify to that

USAGE SUMMARY

The phrase "I can testify to that" is correct and usable in written English.
It is used to express strong agreement with a statement. For example, you could say, "I'm sure that they're telling the truth - I can testify to that."

✓ Grammatically correct

News & Media

Formal & Business

Human-verified examples from authoritative sources

Exact Expressions

10 human-written examples

I can testify to that.

The New York Times

We're not in 1968 anymore, and at 65, I can testify to that.

The New York Times

"I can testify to that firsthand".

The New Yorker

I can testify to that success.

Independent

I can testify to that as someone who was 13 when Live Forever came out and immediately felt its power surge through every pore of my body.

The Guardian - Music

I can testify to that detail: I walked around at night in Manhattan a lot in those years, and hardly ever saw anyone else.

The New Yorker

Human-verified similar examples from authoritative sources

Similar Expressions

49 human-written examples

The British can testify to that.

The New Yorker

Every doctor can testify to that.

The New Yorker

Brother David can testify to that.

The Guardian

Michael Brown, a 46-year-old paramedic in Lancashire, can testify to that.

The Guardian - Money

Brian and Juliana Jaynes of Newport News, Va., can testify to that.

The New York Times - Science

Expert writing Tips

Best practice

Use "I can testify to that" to strongly affirm the truth or accuracy of a statement based on your personal experience or knowledge. It adds a personal touch to your endorsement.

Common error

While generally acceptable, avoid overusing "I can testify to that" in highly formal or academic writing. Opt for more objective language to maintain a professional tone. Examples include: "Evidence suggests...", "Research indicates...", or "Data confirms...".

Linguistic Context

The phrase "I can testify to that" functions as an affirmative statement, indicating agreement with a previous assertion. It expresses personal confirmation based on the speaker's experience. Ludwig AI confirms its correctness and usability.

Expression frequency: Uncommon

Frequent in

News & Media

64%

Formal & Business

10%

Science

8%

Less common in

Wiki

2%

Encyclopedias

0%

Social Media

0%

Ludwig's WRAP-UP

In summary, "I can testify to that" is a grammatically sound and useful phrase for expressing agreement or confirmation, particularly based on personal experience. While Ludwig AI confirms its general correctness, it's best suited for neutral to slightly informal contexts. For highly formal or academic writing, more objective language may be preferable. As demonstrated by Ludwig's examples, this phrase frequently appears in news and media but is less common in academic and scientific publications.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

I can vouch for that

Replaces "testify" with "vouch", indicating personal assurance of truth.

I can confirm that

Uses "confirm" instead of "testify", suggesting verification of a fact.

That I can attest to

Inverts the sentence structure for emphasis, using "attest" as a more formal synonym.

I have firsthand experience of that

Indicates personal involvement or direct observation of the matter.

I know that to be true

Expresses certainty about the truthfulness of a statement.

I can personally guarantee that

Adds a layer of personal assurance and reliability to the claim.

My experience corroborates that

Uses "corroborates" to suggest that personal experience supports the statement.

I am a witness to that

Positions oneself as a direct observer, emphasizing the personal presence.

I have seen that myself

Highlights personal observation as evidence.

I can verify that information

Focuses on the act of verifying the given information as being correct.

FAQs

What does "I can testify to that" mean?

The phrase "I can testify to that" expresses strong agreement with a statement, often based on personal experience or knowledge. It's like saying "I can confirm that from my own experience".

How can I use "I can testify to that" in a sentence?

You can use "I can testify to that" after someone makes a statement you agree with. For example, if someone says "The traffic is terrible in the morning", you could respond, "I can testify to that. I was stuck in it for an hour today".

What can I say instead of "I can testify to that"?

You can use alternatives like "I can vouch for that", "I can confirm that", or "That I can attest to" depending on the context.

Is "I can testify to that" formal or informal?

"I can testify to that" is generally considered neutral to slightly informal. While acceptable in many situations, more formal settings might benefit from alternatives like "I can confirm that" or "My experience corroborates that".