I was just wondering if

Listen, I was wondering if, after work you and I could go out and grab a cup of coffee.

I was just wondering if Joey could ask you a question about breast-feeding.

I was just wondering if you'd like to come with us.

I was just wondering if I could borrow your book.

I was just wondering if I could make a reservation for two tonight.

I was just wondering if you might have a word.

I was just wondering if I could ask your name.

I was just wondering if I could take some time off on Thursday.