I can decollate you can decollate he can decollate we can decollate you can decollate they can decollate
V-ing form
I can be decollating you can be decollating he can be decollating we can be decollating you can be decollating they can be decollating
Perfect
I can have decollated you can have decollated he can have decollated we can have decollated you can have decollated they can have decollated
V-ing perfect
I can have been decollating you can have been decollating he can have been decollating we can have been decollating you can have been decollating they can have been decollating
Negation
Simple form
I can't decollate you can't decollate he can't decollate we can't decollate you can't decollate they can't decollate
V-ing form
I can't be decollating you can't be decollating he can't be decollating we can't be decollating you can't be decollating they can't be decollating
Perfect
I can't have decollated you can't have decollated he can't have decollated we can't have decollated you can't have decollated they can't have decollated
V-ing perfect
I can't have been decollating you can't have been decollating he can't have been decollating we can't have been decollating you can't have been decollating they can't have been decollating
Interrogative form
Simple form
can I decollate? can you decollate? can he decollate? can we decollate? can you decollate? can they decollate?
V-ing form
can I be decollating? can you be decollating? can he be decollating? can we be decollating? can you be decollating? can they be decollating?
Perfect
can I have decollated? can you have decollated? can he have decollated? can we have decollated? can you have decollated? can they have decollated?
V-ing perfect
can I have been decollating? can you have been decollating? can he have been decollating? can we have been decollating? can you have been decollating? can they have been decollating?
Interro-negative form
Simple form
can't I decollate? can't you decollate? can't he decollate? can't we decollate? can't you decollate? can't they decollate?
V-ing form
can't I be decollating? can't you be decollating? can't he be decollating? can't we be decollating? can't you be decollating? can't they be decollating?
Perfect
can't I have decollated? can't you have decollated? can't he have decollated? can't we have decollated? can't you have decollated? can't they have decollated?
V-ing perfect
can't I have been decollating? can't you have been decollating? can't he have been decollating? can't we have been decollating? can't you have been decollating? can't they have been decollating?