Students copy and memorize helping/auxillary verbs. Students can be called on at anytime to recite them. Helping/auxillary verbs can also be a round robin game with each student giving one in order until eliminated ... faster and faster.
have do be was can may
has does am were could might
had did is been shall must
are should
will
would
Teachers note the verbs are grouped as families and this assists students in learning them.