Can't verify zoho acct in gmail or change pswd bc authenticated w/Gmail

Can't verify zoho acct in gmail or change pswd bc authenticated w/Gmail

I am trying to set up receiving email in gmail.  I created the zoho account using the "login with Google" option, so don't have/know a separate zoho email password.  My gmail password doesn't work in either the verify forwarding function that I get when trying to forward my email to gmail, or when I try to change my password within Zoho.

How do I manage my password and how do I set up mail so that everything goes to gmail and I can send via gmail?