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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
not knowing if
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "not knowing if" is correct and usable in written English.
It can be used when expressing uncertainty about a situation or condition. Example: "I was left in a state of confusion, not knowing if I should proceed with the plan or wait for further instructions."
✓ Grammatically correct
News & Media
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
58 human-written examples
Not knowing if I was listening to them".
News & Media
"Especially not knowing if I will continue fencing.
News & Media
Not knowing if we could stay would have almost been worse.
News & Media
I was hesitant, not knowing if I should take this shot or that shot.
News & Media
The maid is frowning at him sulkily, not knowing if she should have let him in.
News & Media
But they also talked of the fear of not knowing if the killing was random.
News & Media
Not knowing if she is alive, the girl lives with neighbors.
News & Media
People would laugh, not knowing if he was joking or mule-headed.
News & Media
I remember not knowing if I'd ever play again, and then going back and playing.
News & Media
Not knowing if your friends are friends with you or your money.
News & Media
"I go to sleep every night not knowing if I will be evicted in the morning".
News & Media
Expert writing Tips
Best practice
Use "not knowing if" to introduce a sense of suspense or anticipation in your writing. This can draw the reader in and create a more engaging narrative.
Common error
Ensure that the clause following "not knowing if" can stand alone as a potential question or condition. Avoid incomplete clauses that leave the reader guessing.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "not knowing if" functions as a conjunction phrase introducing a clause of uncertainty or doubt. It sets up a condition where knowledge about a particular situation is absent, influencing the subsequent action or state. Ludwig AI confirms its grammatical correctness and wide usage.
Frequent in
News & Media
85%
Wiki
7%
Science
4%
Less common in
Formal & Business
1%
Reference
1%
Encyclopedias
1%
Ludwig's WRAP-UP
In summary, "not knowing if" is a versatile and commonly used phrase to express uncertainty or a lack of information. As Ludwig AI indicates, it's grammatically correct and widely accepted. While more formal alternatives like "uncertain whether" exist, "not knowing if" is suitable for most contexts, particularly in news, media, and general writing. When using this phrase, ensure clarity by including a complete clause and identifying the subject experiencing the uncertainty. By understanding its function and purpose, writers can effectively convey states of doubt or anticipation in their narratives.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
uncertain whether
Emphasizes doubt or lack of certainty about a condition or situation.
unsure if
Highlights a state of doubt, with a slightly less formal tone.
without knowing whether
Adds emphasis on the absence of knowledge regarding a particular outcome.
not being aware if
Focuses on the state of unawareness regarding a particular situation.
lacking the knowledge if
Formally indicates a deficiency in information regarding a specific condition.
without any knowledge if
Emphasizes the complete absence of information or awareness.
in ignorance of whether
More formal, highlighting a lack of awareness or information.
uninformed if
States simply that someone has not been informed.
without confirmation if
Indicates that a state has not been confirmed.
oblivious as to whether
Highlights a complete lack of awareness, often implying a disregard for the information.
FAQs
How can I rephrase "not knowing if" to sound more formal?
For a more formal tone, you can use phrases such as "uncertain whether", "without knowing whether", or "in ignorance of whether".
Is it always necessary to include 'whether' after "not knowing"?
While "if" is commonly used after "not knowing", using "whether" is grammatically more precise, especially in formal writing. "If" can sometimes be ambiguous and is often better suited for conditional clauses.
Can "not knowing if" be used at the beginning of a sentence?
Yes, "not knowing if" can begin a sentence, but it usually requires a comma and a main clause to follow. For example, "Not knowing if the train would be on time, I decided to leave early."
What's the difference between "not knowing if" and "not knowing whether"?
While both phrases convey uncertainty, "not knowing whether" is often considered more grammatically correct and formal. In everyday conversation, "not knowing if" is widely accepted and understood.
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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
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested