Sentence examples for sure this from inspiring English sources

I'm not sure this is.

Sure, this comparison is imperfect.

How can you make sure this happens?

I'm sure this is quite common.

"I'm sure this makes them worried".

Congress should make sure this item passes.

Make sure this never happens again!!!

I'm not sure this is correct.

To be sure, this is speculative.

I am not sure this works.

I am sure this is weakness.