She supported him during the illness
Her children always backed her up
Somebody ——s something
Somebody ——s somebody
Something ——s somebody
Something ——s something
Sam cannot back up Sue
The bully had to back down
Something ——s
Somebody ——s
Can you back up your claims?
Somebody ——s something
Something ——s something
You'd better back up these files!
Somebody ——s something
The leaves clog our drains in the Fall
The water pipe is backed up
Something ——s
Somebody ——s something
Something ——s something
* * *
the traffic began to back up
* * *
The car backed up slowly.
Could you back up a little to give me some room?
Wait, let's back up for a second. [=let's go back to what we were discussing earlier]
Traffic backed up for miles because of the accident.
The drain backed up [=clogged] and had to be unclogged by a plumber.
The accident backed up traffic for miles. = Traffic was backed up [=(Brit) tailed back] for miles because of the accident.
The drain was backed up.
It's time to back up your words with deeds!
Remember to back up your work before you log off.
* * *
•
You can back up another two feet or so.
•
I backed the car up to the door.
Useful english dictionary. 2012.