English verb conjugation
CAN SPECIFY

Regular verb: specify - specified - specified

Affirmation

Simple form	V-ing form
I can specify you can specify she can specify we can specify you can specify they can specify	I can be specifying you can be specifying she can be specifying we can be specifying you can be specifying they can be specifying
Perfect	V-ing perfect
I can have specified you can have specified she can have specified we can have specified you can have specified they can have specified	I can have been specifying you can have been specifying she can have been specifying we can have been specifying you can have been specifying they can have been specifying

Negation

Simple form	V-ing form
I can't specify you can't specify she can't specify we can't specify you can't specify they can't specify	I can't be specifying you can't be specifying she can't be specifying we can't be specifying you can't be specifying they can't be specifying
Perfect	V-ing perfect
I can't have specified you can't have specified she can't have specified we can't have specified you can't have specified they can't have specified	I can't have been specifying you can't have been specifying she can't have been specifying we can't have been specifying you can't have been specifying they can't have been specifying

Interrogative form

Simple form	V-ing form
can I specify? can you specify? can she specify? can we specify? can you specify? can they specify?	can I be specifying? can you be specifying? can she be specifying? can we be specifying? can you be specifying? can they be specifying?
Perfect	V-ing perfect
can I have specified? can you have specified? can she have specified? can we have specified? can you have specified? can they have specified?	can I have been specifying? can you have been specifying? can she have been specifying? can we have been specifying? can you have been specifying? can they have been specifying?

Interro-negative form

Simple form	V-ing form
can't I specify? can't you specify? can't she specify? can't we specify? can't you specify? can't they specify?	can't I be specifying? can't you be specifying? can't she be specifying? can't we be specifying? can't you be specifying? can't they be specifying?
Perfect	V-ing perfect
can't I have specified? can't you have specified? can't she have specified? can't we have specified? can't you have specified? can't they have specified?	can't I have been specifying? can't you have been specifying? can't she have been specifying? can't we have been specifying? can't you have been specifying? can't they have been specifying?