I can ascribe you can ascribe he can ascribe we can ascribe you can ascribe they can ascribe
V-ing form
I can be ascribing you can be ascribing he can be ascribing we can be ascribing you can be ascribing they can be ascribing
Perfect
I can have ascribed you can have ascribed he can have ascribed we can have ascribed you can have ascribed they can have ascribed
V-ing perfect
I can have been ascribing you can have been ascribing he can have been ascribing we can have been ascribing you can have been ascribing they can have been ascribing
Negation
Simple form
I can't ascribe you can't ascribe he can't ascribe we can't ascribe you can't ascribe they can't ascribe
V-ing form
I can't be ascribing you can't be ascribing he can't be ascribing we can't be ascribing you can't be ascribing they can't be ascribing
Perfect
I can't have ascribed you can't have ascribed he can't have ascribed we can't have ascribed you can't have ascribed they can't have ascribed
V-ing perfect
I can't have been ascribing you can't have been ascribing he can't have been ascribing we can't have been ascribing you can't have been ascribing they can't have been ascribing
Interrogative form
Simple form
can I ascribe? can you ascribe? can he ascribe? can we ascribe? can you ascribe? can they ascribe?
V-ing form
can I be ascribing? can you be ascribing? can he be ascribing? can we be ascribing? can you be ascribing? can they be ascribing?
Perfect
can I have ascribed? can you have ascribed? can he have ascribed? can we have ascribed? can you have ascribed? can they have ascribed?
V-ing perfect
can I have been ascribing? can you have been ascribing? can he have been ascribing? can we have been ascribing? can you have been ascribing? can they have been ascribing?
Interro-negative form
Simple form
can't I ascribe? can't you ascribe? can't he ascribe? can't we ascribe? can't you ascribe? can't they ascribe?
V-ing form
can't I be ascribing? can't you be ascribing? can't he be ascribing? can't we be ascribing? can't you be ascribing? can't they be ascribing?
Perfect
can't I have ascribed? can't you have ascribed? can't he have ascribed? can't we have ascribed? can't you have ascribed? can't they have ascribed?
V-ing perfect
can't I have been ascribing? can't you have been ascribing? can't he have been ascribing? can't we have been ascribing? can't you have been ascribing? can't they have been ascribing?