fill in for or cover for

[ticcota]

Hi

When you need to be away from work for a while, you want one of your coworkers to fill in for you (or cover for you), until you're back to the work?

Thanks.

 

[Copyright]

Yes I do... now what was your question?

 

[ticcota]

. Thank you. I mean which phrase of "fill in for" or "cover for" is correct?

 

[Copyright]

Both are great. Now if I could only get a colleague to do either one for me, I'd be happy.