a hundred percent sure vs one hundred percent sure

Both 'a hundred percent sure' and 'one hundred percent sure' are correct and commonly used phrases in English. They both convey the idea of being completely certain about something.

Last updated: March 31, 2024 • 2259 views

This phrase is correct and commonly used in English to express complete certainty about something.

"a hundred percent sure"

This phrase is used to emphasize that someone is completely sure about something. It is often used in informal contexts.

Examples:

I am a hundred percent sure that I locked the door before leaving.
She was a hundred percent sure that she had made the right decision.
Are you a hundred percent sure that this is the right way to go?
He needs to be a hundred percent sure before making a decision.
I'm not a hundred percent sure about the answer, but I think it's correct.

Show examples from the web [+]

'Cause I'm not a hundred percent sure it's the right thing to do.
I mean, if I weren't a hundred percent sure which I'm supposed to be.
We're not a hundred percent sure, they took their translator with them.
You better be a hundred percent sure before you make any accusations.
It is my job to be a hundred percent sure before I place a child.
If it is M.S., and we're not a hundred percent sure.
Why, it's impossible to be a hundred percent sure.
Are you a hundred percent sure?
You can be hundred percent sure that the minister either.
I just want to make sure he's a hundred percent before I leave.
With a hundred percent clearance rate.
We're behind you a hundred percent.
I'll back you up a hundred percent.
Close to a hundred percent mortality rate.
They're a hundred percent real.
The deal's off unless you come a hundred percent clean.
A hundred percent, you're going to Philly.
This vehicle's a hundred percent biodiesel.
And a hundred percent chance that Tyler dies.
And a hundred percent of the malpractice suits.

Alternatives:

one hundred percent sure
completely sure
absolutely sure
totally sure
utterly sure

This phrase is correct and commonly used in English to convey complete certainty about something.

"one hundred percent sure"

This phrase is also used to emphasize complete certainty. It is interchangeable with 'a hundred percent sure' and is commonly used in both formal and informal contexts.

Examples:

I am one hundred percent sure that I turned off the stove.
She was one hundred percent sure that she would succeed.
Are you one hundred percent sure that this is the right decision?
He needs to be one hundred percent sure before signing the contract.
I'm not one hundred percent sure about the details, but I can check and confirm.

Show examples from the web [+]

'Cause I'm not a hundred percent sure it's the right thing to do.
I mean, if I weren't a hundred percent sure which I'm supposed to be.
We're not a hundred percent sure, they took their translator with them.
You can be hundred percent sure that the minister either.
You better be a hundred percent sure before you make any accusations.
It is my job to be a hundred percent sure before I place a child.
If it is M.S., and we're not a hundred percent sure.
That makes the medical bills one hundred percent tax deductible.
One hundred percent, guaranteed rejection.
I would support you one hundred percent.
I regret to inform you that after a long battle with illness our beloved Queen is not quite one hundred percent.
You're one hundred percent human.
I am one hundred percent Caucasian.
You made it one hundred percent chocolate rich.
Unless your thoughts are innocent... one-hundred percent.
I am one hundred percent behind our boys.
One hundred percent of your relationships have failed.
I believe that we need a budget, one hundred percent.
That is not to say that we are one hundred percent happy.
And a guarantee that one hundred percent.

Alternatives:

a hundred percent sure
completely sure
absolutely sure
totally sure
utterly sure

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a hundred percent sure vs one hundred percent sure