She spent a lot of time thinking about her father.

Of course, now that the immediate flight was over, she would begin thinking about her father again.

It was a very strange thing to think about one's own father.

She thought about her father, but only rarely and never with more than passing interest.

I used to think the same thing about my father.

She said it was a heart attack and I thought about your father.

It probably gave me reason to think about my father more than I had before.

"And are you thinking about your dead father the dentist?"

She thought about her father for the first time in days.

You didn't want to think those thoughts about your father, but sometimes they come.