I can duplicate you can duplicate he can duplicate we can duplicate you can duplicate they can duplicate
Forme en V-ing
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
I can have duplicated you can have duplicated he can have duplicated we can have duplicated you can have duplicated they can have duplicated
Perfect en V-ing
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
Négation
Forme simple
I can't duplicate you can't duplicate he can't duplicate we can't duplicate you can't duplicate they can't duplicate
Forme en V-ing
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
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
Perfect en V-ing
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
Forme interrogative
Forme simple
can I duplicate? can you duplicate? can he duplicate? can we duplicate? can you duplicate? can they duplicate?
Forme en V-ing
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
can I have duplicated? can you have duplicated? can he have duplicated? can we have duplicated? can you have duplicated? can they have duplicated?
Perfect en V-ing
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?
Forme interro-négative
Forme simple
can't I duplicate? can't you duplicate? can't he duplicate? can't we duplicate? can't you duplicate? can't they duplicate?
Forme en V-ing
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
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?
Perfect en V-ing
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?