V of n
The 'think' group
These verbs are concerned with thinking or having an opinion. The prepositional phrase indicates the topic of the thought or opinion.
She was very much concerned that her parents did not approve of her decision.
She's not even trying. I despair of her!
The preposition of is sometimes followed by an '-ing' clause.
Peter is thinking of giving up teaching to become a full-time politician.
In the case of approve, conceive, disapprove, dream, and think, the preposition of is sometimes followed by a noun group and an '-ing' clause. This pattern is V of n -ing.
approve (cannot) conceive conceive daydream despair disapprove dream repent think
He couldn't conceive of anyone arguing with his results.
She disapproves of me talking to you.