I can civilize you can civilize he can civilize we can civilize you can civilize they can civilize
V-ing form
I can be civilizing you can be civilizing he can be civilizing we can be civilizing you can be civilizing they can be civilizing
Perfect
I can have civilized you can have civilized he can have civilized we can have civilized you can have civilized they can have civilized
V-ing perfect
I can have been civilizing you can have been civilizing he can have been civilizing we can have been civilizing you can have been civilizing they can have been civilizing
Negation
Simple form
I can't civilize you can't civilize he can't civilize we can't civilize you can't civilize they can't civilize
V-ing form
I can't be civilizing you can't be civilizing he can't be civilizing we can't be civilizing you can't be civilizing they can't be civilizing
Perfect
I can't have civilized you can't have civilized he can't have civilized we can't have civilized you can't have civilized they can't have civilized
V-ing perfect
I can't have been civilizing you can't have been civilizing he can't have been civilizing we can't have been civilizing you can't have been civilizing they can't have been civilizing
Interrogative form
Simple form
can I civilize? can you civilize? can he civilize? can we civilize? can you civilize? can they civilize?
V-ing form
can I be civilizing? can you be civilizing? can he be civilizing? can we be civilizing? can you be civilizing? can they be civilizing?
Perfect
can I have civilized? can you have civilized? can he have civilized? can we have civilized? can you have civilized? can they have civilized?
V-ing perfect
can I have been civilizing? can you have been civilizing? can he have been civilizing? can we have been civilizing? can you have been civilizing? can they have been civilizing?
Interro-negative form
Simple form
can't I civilize? can't you civilize? can't he civilize? can't we civilize? can't you civilize? can't they civilize?
V-ing form
can't I be civilizing? can't you be civilizing? can't he be civilizing? can't we be civilizing? can't you be civilizing? can't they be civilizing?
Perfect
can't I have civilized? can't you have civilized? can't he have civilized? can't we have civilized? can't you have civilized? can't they have civilized?
V-ing perfect
can't I have been civilizing? can't you have been civilizing? can't he have been civilizing? can't we have been civilizing? can't you have been civilizing? can't they have been civilizing?