English verb conjugation
CAN DAMAGE

Regular verb: damage - damaged - damaged

Affirmation

Simple form	V-ing form
I can damage you can damage he can damage we can damage you can damage they can damage	I can be damaging you can be damaging he can be damaging we can be damaging you can be damaging they can be damaging
Perfect	V-ing perfect
I can have damaged you can have damaged he can have damaged we can have damaged you can have damaged they can have damaged	I can have been damaging you can have been damaging he can have been damaging we can have been damaging you can have been damaging they can have been damaging

Negation

Simple form	V-ing form
I can't damage you can't damage he can't damage we can't damage you can't damage they can't damage	I can't be damaging you can't be damaging he can't be damaging we can't be damaging you can't be damaging they can't be damaging
Perfect	V-ing perfect
I can't have damaged you can't have damaged he can't have damaged we can't have damaged you can't have damaged they can't have damaged	I can't have been damaging you can't have been damaging he can't have been damaging we can't have been damaging you can't have been damaging they can't have been damaging

Interrogative form

Simple form	V-ing form
can I damage? can you damage? can he damage? can we damage? can you damage? can they damage?	can I be damaging? can you be damaging? can he be damaging? can we be damaging? can you be damaging? can they be damaging?
Perfect	V-ing perfect
can I have damaged? can you have damaged? can he have damaged? can we have damaged? can you have damaged? can they have damaged?	can I have been damaging? can you have been damaging? can he have been damaging? can we have been damaging? can you have been damaging? can they have been damaging?

Interro-negative form

Simple form	V-ing form
can't I damage? can't you damage? can't he damage? can't we damage? can't you damage? can't they damage?	can't I be damaging? can't you be damaging? can't he be damaging? can't we be damaging? can't you be damaging? can't they be damaging?
Perfect	V-ing perfect
can't I have damaged? can't you have damaged? can't he have damaged? can't we have damaged? can't you have damaged? can't they have damaged?	can't I have been damaging? can't you have been damaging? can't he have been damaging? can't we have been damaging? can't you have been damaging? can't they have been damaging?