English verb conjugation
CAN DUPLICATE

Regular verb: duplicate - duplicated - duplicated

Affirmation

Simple form	V-ing form
I can duplicate you can duplicate he can duplicate we can duplicate you can duplicate they can duplicate	I can be duplicating you can be duplicating he can be duplicating we can be duplicating you can be duplicating they can be duplicating
Perfect	V-ing perfect
I can have duplicated you can have duplicated he can have duplicated we can have duplicated you can have duplicated they can have duplicated	I can have been duplicating you can have been duplicating he can have been duplicating we can have been duplicating you can have been duplicating they can have been duplicating

Negation

Simple form	V-ing form
I can't duplicate you can't duplicate he can't duplicate we can't duplicate you can't duplicate they can't duplicate	I can't be duplicating you can't be duplicating he can't be duplicating we can't be duplicating you can't be duplicating they can't be duplicating
Perfect	V-ing perfect
I can't have duplicated you can't have duplicated he can't have duplicated we can't have duplicated you can't have duplicated they can't have duplicated	I can't have been duplicating you can't have been duplicating he can't have been duplicating we can't have been duplicating you can't have been duplicating they can't have been duplicating

Interrogative form

Simple form	V-ing form
can I duplicate? can you duplicate? can he duplicate? can we duplicate? can you duplicate? can they duplicate?	can I be duplicating? can you be duplicating? can he be duplicating? can we be duplicating? can you be duplicating? can they be duplicating?
Perfect	V-ing perfect
can I have duplicated? can you have duplicated? can he have duplicated? can we have duplicated? can you have duplicated? can they have duplicated?	can I have been duplicating? can you have been duplicating? can he have been duplicating? can we have been duplicating? can you have been duplicating? can they have been duplicating?

Interro-negative form

Simple form	V-ing form
can't I duplicate? can't you duplicate? can't he duplicate? can't we duplicate? can't you duplicate? can't they duplicate?	can't I be duplicating? can't you be duplicating? can't he be duplicating? can't we be duplicating? can't you be duplicating? can't they be duplicating?
Perfect	V-ing perfect
can't I have duplicated? can't you have duplicated? can't he have duplicated? can't we have duplicated? can't you have duplicated? can't they have duplicated?	can't I have been duplicating? can't you have been duplicating? can't he have been duplicating? can't we have been duplicating? can't you have been duplicating? can't they have been duplicating?