acercarse a-to approach
arrepentirse de-to regret
atreverse a-to dare
convertirse en-to become
darse cuenta de- to realize
enterarse de-to find out about
fijarse en-to take notice of
morirse de-to die of
olivdarse de-to forget
preocuparse por-to worry
quejarse de- to complain
sorprenderse de-to be surprised about
para-destination, deadline/futuretime, goal,
purpose, recipient, comparison with others, employment.
Por-motion/general location, duration, reason/motive,
object of serch, means by which, exchange/substitution, measure