I’m not sure in a sentence

I’m not sure right now.

I’m not sure I can afford it.

I’m not sure of the exact date.

I’m not sure as to when he will turn up.

I think he is from Australia, but I’m not sure.

I’m not sure of the name, but the extension is .

I’m not sure why they were forced to close the restaurant.

I’m not sure if this table is wide enough to put my computer on.

I’m not sure the children are mature enough to sit through a lecture like this.

I’m not sure what I will do after I graduate, but I suppose I will have to find a job.

I’m not sure what time we’re going to leave, but I reckon it’ll be no later than 7:00.

I saw an ad in the paper for a nice used pick-up truck, but I’m not sure if I can afford it.

I’m not sure what his number is.

You’ll have to look it up in the telephone directory.

No one denies that he is a good worker, but I’m not sure if he is ready for a management position.

Could you please clarify the instructions for our research project, I’m not sure I quite understood.

I’m not sure what sort of clothes to take on vacation because I don’t what kind of weather to expect.

I’m not sure what the relationship is between Anne and Jacques, but I know they’re connected somehow.

Using the Internet to do your banking is very convenient, but I’m not sure how secure it actually is.

The response to the proposal seemed somewhat muted, so I’m not sure what they really thought about it.

After the hatchet job my boss did on my proposal, I’m not sure how long I want to keep on working here.

I think the meeting is at 4:00, but I’m not sure, so I’ll check with my supervisor, and phone you back to confirm.

Albert Einstein once said “Only two things are infinite, the universe and human stupidity, and I’m not sure about the former.

Albert Einstein once said, “Only two things are infinite, the universe and human stupidity, and I’m not sure about the former.

I’m not sure of this scheme.

I don’t think it will stand up to close scrutiny once we get a chance to take a good look at it.

I’m not sure, but I think the first European to chart the west coast of what is now known as British Columbia was the explorer Captain Cook.