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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
is that you
Grammar usage guide and real-world examplesUSAGE SUMMARY
'is that you' can be used in written English.
It is often used as a question, for example: "Hello, is that you?".
✓ Grammatically correct
News & Media
Science
Wiki
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
36 human-written examples
Who is that, you ask?
News & Media
Why is that, you ask?
News & Media
What is that, you ask?
News & Media
Is That You Mr. Reilly?
Academia
Song: Is That You Love.
News & Media
Sharon, is that you?
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
24 human-written examples
And that's that, you know?" No.
News & Media
'What's that?' you ask.
News & Media
What's that, you say?
News & Media
"What's that?" "You know.
News & Media
What's that, you ask?
News & Media
Expert writing Tips
Best practice
Use "is that you" when you are trying to confirm the identity of someone you recognize, especially in situations where recognition is uncertain or surprising.
Common error
Avoid using "is that you" in situations where you have no prior knowledge or expectation of knowing the person. It's best suited for moments of potential recognition.
Source & Trust
83%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is that you" functions primarily as an interrogative phrase used to confirm the identity of an individual. As Ludwig AI confirms, it's frequently used in questions. Examples in the provided data include "Sharon, is that you?" and "Britney, is that you?".
Frequent in
News & Media
65%
Wiki
20%
Science
15%
Less common in
Formal & Business
0%
Academia
0%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, "is that you" is a common and grammatically sound phrase used to confirm someone's identity, often with an element of surprise or uncertainty. As Ludwig AI states, it's used as a question. It appears most frequently in news and media, as well as in more informal contexts like Wiki articles. While the phrase is generally appropriate, be mindful of the context and avoid using it when you have no reasonable basis to suspect you know the person. Consider alternatives like "is it really you" or a more formal ""are you Mr./Ms. [Name]"?" depending on the situation.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
Could that be you
Emphasizes possibility and uncertainty in identifying someone.
Is it really you
Expresses surprise or disbelief at recognizing someone.
Is that actually you
Adds emphasis to the surprise of identifying someone.
Is this really you
Similar to 'Is it really you', it emphasizes disbelief.
Are you really him/her
Replaces pronoun 'that' with a gendered pronoun, changing emphasis slightly.
Can it be you
Expresses a sense of wonder or disbelief.
Do I know you
Used when there is uncertainty about whether the person is familiar.
Is that your voice
Focuses specifically on voice recognition.
Am I seeing you right
Expresses uncertainty or disbelief in seeing someone.
I didn't expect to see you here
Highlights the unexpected nature of the encounter.
FAQs
How do I use "is that you" in a sentence?
You can use "is that you" as a question to confirm someone's identity when you suspect you know them, for example, "Hello, is that you, John?" or "Siri? "is that you"?"
What's a more formal way to ask "is that you"?
In a more formal context, you might ask "Excuse me, are you [Person's Name]?" or "Pardon me, "are you Mr./Ms. [Name]"?" These phrases are more polite and suitable for professional settings.
What can I say instead of "is that you" to express surprise?
To express surprise, you could say "Is it really you?", "I can't believe it's you!", or "What a surprise to see you here!"
Is it appropriate to use "is that you" in writing?
Yes, "is that you" is appropriate in writing, especially in dialogue or informal correspondence where you want to convey a sense of personal recognition or surprise. For example, "I received a call from an unknown number. When I answered, I heard a familiar voice. "Is that you?" I asked."
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
83%
Authority and reliability
4.1/5
Expert rating
Real-world application tested