Look – phrasal verb
Look after – take care of
She looked after her little brother when their mother was in hospital.
Look at – examine something carefully
I’m going to look at that problem as soon as possible.
Look back on – think about something in the past
I often look back on my last holiday at the seaside.
Look for – search for something
He’s looking for a new flat to move into at the moment.
Look forward to – to be exited about something
They’re looking forward to their holiday in Kenya.
Look in (on somebody) – a short visit to a person’s home
You have to go and look in on your grandmother tomorrow.
Look into – examine a problem
He’ll look into it when he gets back from the business trip.
Look on – watch something without becoming involved
The people looked on in shock as the car swerved and hit the lamppost.
Look out – try to avoid danger
Look out for the oncoming traffic when crossing the road.
Look over – examine something to see how good it is
We looked the car over thoroughly before we bought it.
Look through somebody – ignore a person by pretending not seeing him/her
She just looked through me as I was approaching her on the street.
Look up – raise your eyes when looking down
We all looked up from our textbooks when she entered the room.
Look up to somebody – admire/respect somebody
I have always looked up to my older brother.