Go by - Judge from
You can’t always go by appearances.

Go into - Investigate
He promised to go into the matter.

Go down - Believe
The story won’t go down.

Go through - Suffer, Examine
The old lady has gone through a lot.
I must go through the accounts.

Go up - Rise in price
Prices are going up day by day.

Go off - Explode
The gun went off all of a sudden.

Go about - move from place to place
He went about in search of job.