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 cannot decollate you cannot decollate he cannot decollate we cannot decollate you cannot decollate they cannot decollate
V-ing form
I cannot be decollating you cannot be decollating he cannot be decollating we cannot be decollating you cannot be decollating they cannot be decollating
Perfect
I cannot have decollated you cannot have decollated he cannot have decollated we cannot have decollated you cannot have decollated they cannot have decollated
V-ing perfect
I cannot have been decollating you cannot have been decollating he cannot have been decollating we cannot have been decollating you cannot have been decollating they cannot 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 I not decollate? can you not decollate? can he not decollate? can we not decollate? can you not decollate? can they not decollate?
V-ing form
can I not be decollating? can you not be decollating? can he not be decollating? can we not be decollating? can you not be decollating? can they not be decollating?
Perfect
can I not have decollated? can you not have decollated? can he not have decollated? can we not have decollated? can you not have decollated? can they not have decollated?
V-ing perfect
can I not have been decollating? can you not have been decollating? can he not have been decollating? can we not have been decollating? can you not have been decollating? can they not have been decollating?