username

good, shorter, sure

I always try to pick a good username that's easy for people to remember.

can't, change, check, chosen, enter, forgot, make, try

I forgot my username and had to reset my password to log back in.

password, tatoeba

I forgot my username and password for the email account I haven't used in years.

in, on, with

I forgot my password and had to log in with my username instead.