 | This user is {{{2}}} {{{1}}}. |
The way this userbox works, is if you type
{{User:McLennonSon/Userboxes/Non-binary|Agender|}}you would get:
| This user is Agender. |
.
For terms like demigirl, type
{{User:McLennonSon/Userboxes/Non-binary|Demigirl|a}}to get:
| This user is a Demigirl. |