If I have got too many things to do and very little time for it.
Can I say " I can not catch up with all of these".
If I have got too many things to do and very little time for it.
Can I say " I can not catch up with all of these".
The expression here should be to catch up on (chores/reading/accounts).
"I cannot (or can not) catch up on all of these."
Examples for "to catch up with":
Succeed in reaching a person who is ahead of one: "You go with Stasia and Katie, and I’ll catch up with you."
Talk to (someone) whom one has not seen for some time in order to find out what he or she has been doing in the interim: "Had a chance to catch up with old friends."
Begin to have a damaging effect on: "The physical exertions began to catch up with Sue."