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 can't perpetuate you can't perpetuate he can't perpetuate we can't perpetuate you can't perpetuate they can't perpetuate
V-ing form
I can't be perpetuating you can't be perpetuating he can't be perpetuating we can't be perpetuating you can't be perpetuating they can't be perpetuating
Perfect
I can't have perpetuated you can't have perpetuated he can't have perpetuated we can't have perpetuated you can't have perpetuated they can't have perpetuated
V-ing perfect
I can't have been perpetuating you can't have been perpetuating he can't have been perpetuating we can't have been perpetuating you can't have been perpetuating they can't 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't I perpetuate? can't you perpetuate? can't he perpetuate? can't we perpetuate? can't you perpetuate? can't they perpetuate?
V-ing form
can't I be perpetuating? can't you be perpetuating? can't he be perpetuating? can't we be perpetuating? can't you be perpetuating? can't they be perpetuating?
Perfect
can't I have perpetuated? can't you have perpetuated? can't he have perpetuated? can't we have perpetuated? can't you have perpetuated? can't they have perpetuated?
V-ing perfect
can't I have been perpetuating? can't you have been perpetuating? can't he have been perpetuating? can't we have been perpetuating? can't you have been perpetuating? can't they have been perpetuating?