I can perpetuate you can perpetuate he can perpetuate we can perpetuate you can perpetuate they can perpetuate
V-ing form
I can be perpetuating you can be perpetuating he can be perpetuating we can be perpetuating you can be perpetuating they can be perpetuating
Perfect
I can have perpetuated you can have perpetuated he can have perpetuated we can have perpetuated you can have perpetuated they can have perpetuated
V-ing perfect
I can have been perpetuating you can have been perpetuating he can have been perpetuating we can have been perpetuating you can have been perpetuating they can have been perpetuating
Negation
Simple form
I cannot perpetuate you cannot perpetuate he cannot perpetuate we cannot perpetuate you cannot perpetuate they cannot perpetuate
V-ing form
I cannot be perpetuating you cannot be perpetuating he cannot be perpetuating we cannot be perpetuating you cannot be perpetuating they cannot be perpetuating
Perfect
I cannot have perpetuated you cannot have perpetuated he cannot have perpetuated we cannot have perpetuated you cannot have perpetuated they cannot have perpetuated
V-ing perfect
I cannot have been perpetuating you cannot have been perpetuating he cannot have been perpetuating we cannot have been perpetuating you cannot have been perpetuating they cannot have been perpetuating
Interrogative form
Simple form
can I perpetuate? can you perpetuate? can he perpetuate? can we perpetuate? can you perpetuate? can they perpetuate?
V-ing form
can I be perpetuating? can you be perpetuating? can he be perpetuating? can we be perpetuating? can you be perpetuating? can they be perpetuating?
Perfect
can I have perpetuated? can you have perpetuated? can he have perpetuated? can we have perpetuated? can you have perpetuated? can they have perpetuated?
V-ing perfect
can I have been perpetuating? can you have been perpetuating? can he have been perpetuating? can we have been perpetuating? can you have been perpetuating? can they have been perpetuating?
Interro-negative form
Simple form
can I not perpetuate? can you not perpetuate? can he not perpetuate? can we not perpetuate? can you not perpetuate? can they not perpetuate?
V-ing form
can I not be perpetuating? can you not be perpetuating? can he not be perpetuating? can we not be perpetuating? can you not be perpetuating? can they not be perpetuating?
Perfect
can I not have perpetuated? can you not have perpetuated? can he not have perpetuated? can we not have perpetuated? can you not have perpetuated? can they not have perpetuated?
V-ing perfect
can I not have been perpetuating? can you not have been perpetuating? can he not have been perpetuating? can we not have been perpetuating? can you not have been perpetuating? can they not have been perpetuating?