Ser
sea/sean
ir
vaya/vayan
dar
dé/den
estar
esté/estén
haber
haya/hayan
saber
sepa/sepan
Follow me!
sígame! (when affirmative, object comes after verb, adding an accent to conjugated verb)
Don’t follow me!
no me siga! (when negative, you cannot add the object onto end)