“if I am not mistaken”可以造什么句，if I am not mistaken造句

I think Alfred wanted to marry Jennifer, if I am not mistaken.

however, if I am not mistaken, I must be close to Tiboulen. But what if I were mistaken?"A shudder passed over him.

I think he once wanted to marry her, if I am not mistaken.

Mr Yap and I made a wish, and if I am not mistaken we threw Euro1 COINS.

We have some good climbing places here (also two 9a's if I am not mistaken).