You need to submit your username to log in.
You need to submit your password to log in.
You need to submit your username and password to log.
You need to submit a username to register.
You need to submit a password to register.
You need to submit an email address to register.
You need to submit a username and password to register.
You need to submit a username and email address to register.
You need to submit an email address and password to register.
You need to submit a username and password to register.