ADV

a lot
I learned a lot from my father
quickly, soon
Children learn very quickly. They soon learn that bad behaviour is a sure-fire way of getting attention

VERB + LEARN

need to
be eager to, want to
He was eager to learn all she could teach him
have a lot to
I've got a lot to learn, haven't I?

PREP

about
learning about art
from
She learned from watching others
through
Children learn through play

VERB + LEARN

be astonished to, be astounded to, be intrigued to, be surprised to
I was surprised to learn that he was only 24
be dismayed to, be saddened to

PREP

of
We first learned of the problem from her school