No, no. Absolutely sure.

It's not safe. We can't be sure.

I'm not sure that we can. We can't do Love Company's job with one machine gun.

I'm not at all certain.

I'm not so sure.

I don't know. I'm not sure.

I can't be sure.

This is what we know for certain.

I can neither confirm nor deny that.

Well, I don't rightly know.

I'm not sure. I'd only be guessing.

I'm not sure we're the ones that should be explaining how significant it is.

Again we don't really know for sure.

Chata's not likely to follow us till he's sure we're not feinting him out of the canyon.

I'm sorry, but I just wasn't sure.

And yet it's not clear what the relationship is between our use of this ability and our happiness.

We have not yet determined whether the assailant was a man or a woman.

Maybe? well, we couldn't be sure, but we figured the dry, warm air would help ease him.

I couldn't quite tell for sure, but...

I'm not sure you can get through now.

I can't talk about it.

We are not good at reasoning with uncertainty.

All we can be sure of is the variability will be different.

They're not sending the trucks.

Can we identify any stereocenters or chiral carbons or chiral atoms?

If I could be sure it was for us...

Can we be sure of anything here?

I get so confused, I'm not sure of anything.

I'm doing it so we can identify what we're up against.

It is possible to achieve the objectives that we have set we still have time, but the results and the outcome cannot wait.

I do not intend to hold a formal meeting until I am in a position to determine that we are moving forward.

Oh, no. We just wanted to be sure that you weren't.

And we're not quite sure why.

I'm not sure I really even want it to.

I don't even know if any man can do it.

Of course, if we were certain, we'd do our duty and take the risk.

We all hate moral ambiguity in some sense, and yet it is also absolutely necessary.

Are you sure that one of our girls is involved?

Let's say that a more well, I won't say stable or not.

Not sure I've asked them to do the right thing at the right time.

Sometimes I know what you're thinking, and other times, you just can't make up your mind about me, can you?

You don't know that...

Of course, I'm not sure they'll be up to it.

We didn't know that pollution did more than cause bad visibility.

And I'm not even sure we know what technology is.