Question

i want to know which verbs we say "to them" and only "them" . where can i find examples

Answer 1

Are you saying you want to know verbs that would go with "to them" and "them"?

To them:
Go to them
Run to them
Talk to them
Sing to them
Complain to them
Communicate to them
Perform to them
Show to them
Turn to them

Them:
Find them
Leave them
Correct them
Clarify them
Push them
Pull them
Take them
Fight them
Ruin them
Write them
Say them
Turn them

Answer 2

or if you mean both that works for to them and them altogether only:

turn them / turn to them
say them / say to them
take them / take to them
offer them / offer to them
transfer them / transfer to them
give them / give to them