Question

Back up files  to prepare a second copy of a file so that it can be used if the original is lost or damaged. / Remember to back up your files every two days. / We recommend that you should back up your files onto a floppy disk since all files saved in your computer might be lost or deleted unexpectedly.

Accepted Answer

Verb + Noun

Collocation	Back up files
Type	Verb + Noun
Examples	to prepare a second copy of a file so that it can be used if the original is lost or damaged. / Remember to back up your files every two days. / We recommend that you should back up your files onto a floppy disk since all files saved in your computer might be lost or deleted unexpectedly.

Files Back Lost Verb Noun Prepare Copy Original