I can proportion you can proportion he can proportion we can proportion you can proportion they can proportion
V-ing form
I can be proportioning you can be proportioning he can be proportioning we can be proportioning you can be proportioning they can be proportioning
Perfect
I can have proportioned you can have proportioned he can have proportioned we can have proportioned you can have proportioned they can have proportioned
V-ing perfect
I can have been proportioning you can have been proportioning he can have been proportioning we can have been proportioning you can have been proportioning they can have been proportioning
Negation
Simple form
I can't proportion you can't proportion he can't proportion we can't proportion you can't proportion they can't proportion
V-ing form
I can't be proportioning you can't be proportioning he can't be proportioning we can't be proportioning you can't be proportioning they can't be proportioning
Perfect
I can't have proportioned you can't have proportioned he can't have proportioned we can't have proportioned you can't have proportioned they can't have proportioned
V-ing perfect
I can't have been proportioning you can't have been proportioning he can't have been proportioning we can't have been proportioning you can't have been proportioning they can't have been proportioning
Interrogative form
Simple form
can I proportion? can you proportion? can he proportion? can we proportion? can you proportion? can they proportion?
V-ing form
can I be proportioning? can you be proportioning? can he be proportioning? can we be proportioning? can you be proportioning? can they be proportioning?
Perfect
can I have proportioned? can you have proportioned? can he have proportioned? can we have proportioned? can you have proportioned? can they have proportioned?
V-ing perfect
can I have been proportioning? can you have been proportioning? can he have been proportioning? can we have been proportioning? can you have been proportioning? can they have been proportioning?
Interro-negative form
Simple form
can't I proportion? can't you proportion? can't he proportion? can't we proportion? can't you proportion? can't they proportion?
V-ing form
can't I be proportioning? can't you be proportioning? can't he be proportioning? can't we be proportioning? can't you be proportioning? can't they be proportioning?
Perfect
can't I have proportioned? can't you have proportioned? can't he have proportioned? can't we have proportioned? can't you have proportioned? can't they have proportioned?
V-ing perfect
can't I have been proportioning? can't you have been proportioning? can't he have been proportioning? can't we have been proportioning? can't you have been proportioning? can't they have been proportioning?