These verbs are not common because of their meaning in English but rather by how they are conjugated.
Each of these words end in -ar. You can conjugate all of these verbs using the following rules:
yo: -o
tu: -as
el/ella/Ud: -a
nosotros/as: -amos
vosotros/as: -ais
ellos/ellas/ Uds: -an
