English verb conjugation
CAN GROUSE

Regular verb: grouse - groused - groused

Affirmation

Simple form	V-ing form
I can grouse you can grouse he can grouse we can grouse you can grouse they can grouse	I can be grousing you can be grousing he can be grousing we can be grousing you can be grousing they can be grousing
Perfect	V-ing perfect
I can have groused you can have groused he can have groused we can have groused you can have groused they can have groused	I can have been grousing you can have been grousing he can have been grousing we can have been grousing you can have been grousing they can have been grousing

Negation

Simple form	V-ing form
I can't grouse you can't grouse he can't grouse we can't grouse you can't grouse they can't grouse	I can't be grousing you can't be grousing he can't be grousing we can't be grousing you can't be grousing they can't be grousing
Perfect	V-ing perfect
I can't have groused you can't have groused he can't have groused we can't have groused you can't have groused they can't have groused	I can't have been grousing you can't have been grousing he can't have been grousing we can't have been grousing you can't have been grousing they can't have been grousing

Interrogative form

Simple form	V-ing form
can I grouse? can you grouse? can he grouse? can we grouse? can you grouse? can they grouse?	can I be grousing? can you be grousing? can he be grousing? can we be grousing? can you be grousing? can they be grousing?
Perfect	V-ing perfect
can I have groused? can you have groused? can he have groused? can we have groused? can you have groused? can they have groused?	can I have been grousing? can you have been grousing? can he have been grousing? can we have been grousing? can you have been grousing? can they have been grousing?

Interro-negative form

Simple form	V-ing form
can't I grouse? can't you grouse? can't he grouse? can't we grouse? can't you grouse? can't they grouse?	can't I be grousing? can't you be grousing? can't he be grousing? can't we be grousing? can't you be grousing? can't they be grousing?
Perfect	V-ing perfect
can't I have groused? can't you have groused? can't he have groused? can't we have groused? can't you have groused? can't they have groused?	can't I have been grousing? can't you have been grousing? can't he have been grousing? can't we have been grousing? can't you have been grousing? can't they have been grousing?