I'm not sure
neutral
You are uncertain.
I'm not sure whether we should send it today.
Meaning-first English
How to say "Saying I'm not sure" in English
This is the gentle middle between yes and no. Useful when you need space, facts, or confidence.
I'm not sure
phraseneutral
The safest default: natural, clear, and easy to adapt.
A: Is this the final version?
B: I'm not sure yet.
Skip: "I want to say saying i'm not sure" — This describes your search, not what you'd say to a person.
Phrase playground
Pick your exact meaning
Start with the human feeling, then choose the English that fits the moment.
Saying I'm not sureWhat do you mean?
I'm not convinced
neutral
You need more proof.
I'm not convinced this is the right approach.
I'm on the fence
neutral
You have not chosen a side.
I'm still on the fence about moving.
maybe
neutral
Possible, but not definite.
Maybe, but I need to check.
it's hard to say
neutral
There is not enough information.
It's hard to say without seeing the numbers.
Situation check
Choose the moment
Default
You want the simple, natural option.
I'm not sure
Best first choice.
Softer
You want to sound warmer or less blunt.
I'm not convinced
Good for people.
Stronger
You want more color or emphasis.
I'm on the fence
Use when it fits.
Tone switcher
Say it like...
I'm not sure.
Simple and natural.I'm not sure here, so I'll be careful with the next step.
Work-safe version.I'm sorry, but I'm not sure.
Adds a softener.I'm not sure tbh
Casual only.Native phrase battle
Which sentence best expresses "Saying I'm not sure" naturally?
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If you learn one, learn I'm not sure.