V about n
II.3 The 'learn' group
These verbs are concerned with acquiring knowledge. The prepositional phrase indicates what the knowledge concerns.
We found out about these changes by pure accident.
I heard about the trouble on the television early this morning, so I hurried on over.
The preposition about is sometimes followed by an '-ing' clause.
The players learned about competing against quality opposition and improved each game.
In the case of learn, the preposition about is sometimes followed by a wh-clause.
Even in school, Hewitt was learning about how to use time.
In the case of hear and read, the preposition about is sometimes followed by a noun group and an '-ing' clause. This pattern is V about n -ing.
hear learn read find out
And that's how you heard about Ron fighting with Danny?