I can benefit you can benefit he can benefit we can benefit you can benefit they can benefit
V-ing form
I can be benefiting you can be benefiting he can be benefiting we can be benefiting you can be benefiting they can be benefiting
Perfect
I can have benefited you can have benefited he can have benefited we can have benefited you can have benefited they can have benefited
V-ing perfect
I can have been benefiting you can have been benefiting he can have been benefiting we can have been benefiting you can have been benefiting they can have been benefiting
Negation
Simple form
I can't benefit you can't benefit he can't benefit we can't benefit you can't benefit they can't benefit
V-ing form
I can't be benefiting you can't be benefiting he can't be benefiting we can't be benefiting you can't be benefiting they can't be benefiting
Perfect
I can't have benefited you can't have benefited he can't have benefited we can't have benefited you can't have benefited they can't have benefited
V-ing perfect
I can't have been benefiting you can't have been benefiting he can't have been benefiting we can't have been benefiting you can't have been benefiting they can't have been benefiting
Interrogative form
Simple form
can I benefit? can you benefit? can he benefit? can we benefit? can you benefit? can they benefit?
V-ing form
can I be benefiting? can you be benefiting? can he be benefiting? can we be benefiting? can you be benefiting? can they be benefiting?
Perfect
can I have benefited? can you have benefited? can he have benefited? can we have benefited? can you have benefited? can they have benefited?
V-ing perfect
can I have been benefiting? can you have been benefiting? can he have been benefiting? can we have been benefiting? can you have been benefiting? can they have been benefiting?
Interro-negative form
Simple form
can't I benefit? can't you benefit? can't he benefit? can't we benefit? can't you benefit? can't they benefit?
V-ing form
can't I be benefiting? can't you be benefiting? can't he be benefiting? can't we be benefiting? can't you be benefiting? can't they be benefiting?
Perfect
can't I have benefited? can't you have benefited? can't he have benefited? can't we have benefited? can't you have benefited? can't they have benefited?
V-ing perfect
can't I have been benefiting? can't you have been benefiting? can't he have been benefiting? can't we have been benefiting? can't you have been benefiting? can't they have been benefiting?