I can proliferate you can proliferate he can proliferate we can proliferate you can proliferate they can proliferate
V-ing form
I can be proliferating you can be proliferating he can be proliferating we can be proliferating you can be proliferating they can be proliferating
Perfect
I can have proliferated you can have proliferated he can have proliferated we can have proliferated you can have proliferated they can have proliferated
V-ing perfect
I can have been proliferating you can have been proliferating he can have been proliferating we can have been proliferating you can have been proliferating they can have been proliferating
Negation
Simple form
I can't proliferate you can't proliferate he can't proliferate we can't proliferate you can't proliferate they can't proliferate
V-ing form
I can't be proliferating you can't be proliferating he can't be proliferating we can't be proliferating you can't be proliferating they can't be proliferating
Perfect
I can't have proliferated you can't have proliferated he can't have proliferated we can't have proliferated you can't have proliferated they can't have proliferated
V-ing perfect
I can't have been proliferating you can't have been proliferating he can't have been proliferating we can't have been proliferating you can't have been proliferating they can't have been proliferating
Interrogative form
Simple form
can I proliferate? can you proliferate? can he proliferate? can we proliferate? can you proliferate? can they proliferate?
V-ing form
can I be proliferating? can you be proliferating? can he be proliferating? can we be proliferating? can you be proliferating? can they be proliferating?
Perfect
can I have proliferated? can you have proliferated? can he have proliferated? can we have proliferated? can you have proliferated? can they have proliferated?
V-ing perfect
can I have been proliferating? can you have been proliferating? can he have been proliferating? can we have been proliferating? can you have been proliferating? can they have been proliferating?
Interro-negative form
Simple form
can't I proliferate? can't you proliferate? can't he proliferate? can't we proliferate? can't you proliferate? can't they proliferate?
V-ing form
can't I be proliferating? can't you be proliferating? can't he be proliferating? can't we be proliferating? can't you be proliferating? can't they be proliferating?
Perfect
can't I have proliferated? can't you have proliferated? can't he have proliferated? can't we have proliferated? can't you have proliferated? can't they have proliferated?
V-ing perfect
can't I have been proliferating? can't you have been proliferating? can't he have been proliferating? can't we have been proliferating? can't you have been proliferating? can't they have been proliferating?