Adjectives with Prepositions

ABOUT
worried about
disappointed about
excited about
furious about

AT good at
surprised at (de/por)

BY
surprised by (por)

FOR
Adjective+for+object+infinitive
It was easy for me to pass the exam. 

IN
disappointed in
interested in (en/por)

 
OF
afraid of
fond of (ineresado/a por/en, aficinado/a a)
proud of

ON
keen on (interesado/a en/por)


TO
rude to (con)
Adjective+to+infinitive                                           be+adjective+to
It's easy to follow these instructions.                      These instructions are easy to follow.
It's interesting to learn English.                              English is interesting to learn.
It's difficult to understand her accent.                    Her accent is difficult to understand. 
 
WITH
happy with
bored with
satisfied with
upset with