以下是一些使用「for sure」的例句：
For sure, I will pass this test.
That's for sure. I bet he is not married.
I'm going to the party tonight, for sure.
We need to finish this project by tomorrow, for sure.
No one knows for sure what happened.
I think he'll be back on Monday, but I can't say for sure.
Money talks, that's for sure. All the best seats were reserved for the big shots.
If he sees I am alive, he'll come back for sure!