I can’t help laughing every time I think of that.
I couldn’t help noticing your ring; it’s beautiful.
I can’t help but feel sorry for him.
I can’t help remembering how beautiful she looked.
A: So how long have you known Maria?
B: Only four days.
A: Only four days! That’s so short, and you seem so crazy about her.
B: I know. I can’t help thinking about her. She’s always on my mind.
A: Well, why don’t you ask her out on a date?
B: I’d like to, but what if she said no? I don’t think I could stand the rejection.