Is there like a list of people or anything to help us with your work?
Yo soy bajito.
Ellos son feos.
Tú estas enfermo.
Estamos tristes.
Ella es alta.
To conjugate them, you drop the -ir ending, like you would with a regular verb like finir. Then you add, well, the regular -er verb endings: -e, -es, -e, -ons, -ez, and -ent!