In the sentence
- I can resend it or paste it here on WhatsApp
I am unsure if adding a comma before "or" is appropriate. The clause "paste it here on WhatsApp" seems to be, on its own, dependent. However, if we consider the preceding clause "I can resend it," it becomes obvious that the subject "I" and verb "can" come before "paste is here on WhatsApp."
How do I know whether I can consider a clause dependent or independent when there is no subject written in the clause itself, but it is implied nonetheless?