English verb conjugation
CAN CRITICIZE

Regular verb: criticize - criticized - criticized

Affirmation

Simple form	V-ing form
I can criticize you can criticize he can criticize we can criticize you can criticize they can criticize	I can be criticizing you can be criticizing he can be criticizing we can be criticizing you can be criticizing they can be criticizing
Perfect	V-ing perfect
I can have criticized you can have criticized he can have criticized we can have criticized you can have criticized they can have criticized	I can have been criticizing you can have been criticizing he can have been criticizing we can have been criticizing you can have been criticizing they can have been criticizing

Negation

Simple form	V-ing form
I can't criticize you can't criticize he can't criticize we can't criticize you can't criticize they can't criticize	I can't be criticizing you can't be criticizing he can't be criticizing we can't be criticizing you can't be criticizing they can't be criticizing
Perfect	V-ing perfect
I can't have criticized you can't have criticized he can't have criticized we can't have criticized you can't have criticized they can't have criticized	I can't have been criticizing you can't have been criticizing he can't have been criticizing we can't have been criticizing you can't have been criticizing they can't have been criticizing

Interrogative form

Simple form	V-ing form
can I criticize? can you criticize? can he criticize? can we criticize? can you criticize? can they criticize?	can I be criticizing? can you be criticizing? can he be criticizing? can we be criticizing? can you be criticizing? can they be criticizing?
Perfect	V-ing perfect
can I have criticized? can you have criticized? can he have criticized? can we have criticized? can you have criticized? can they have criticized?	can I have been criticizing? can you have been criticizing? can he have been criticizing? can we have been criticizing? can you have been criticizing? can they have been criticizing?

Interro-negative form

Simple form	V-ing form
can't I criticize? can't you criticize? can't he criticize? can't we criticize? can't you criticize? can't they criticize?	can't I be criticizing? can't you be criticizing? can't he be criticizing? can't we be criticizing? can't you be criticizing? can't they be criticizing?
Perfect	V-ing perfect
can't I have criticized? can't you have criticized? can't he have criticized? can't we have criticized? can't you have criticized? can't they have criticized?	can't I have been criticizing? can't you have been criticizing? can't he have been criticizing? can't we have been criticizing? can't you have been criticizing? can't they have been criticizing?