I can accomplish you can accomplish he can accomplish we can accomplish you can accomplish they can accomplish
V-ing form
I can be accomplishing you can be accomplishing he can be accomplishing we can be accomplishing you can be accomplishing they can be accomplishing
Perfect
I can have accomplished you can have accomplished he can have accomplished we can have accomplished you can have accomplished they can have accomplished
V-ing perfect
I can have been accomplishing you can have been accomplishing he can have been accomplishing we can have been accomplishing you can have been accomplishing they can have been accomplishing
Negation
Simple form
I can't accomplish you can't accomplish he can't accomplish we can't accomplish you can't accomplish they can't accomplish
V-ing form
I can't be accomplishing you can't be accomplishing he can't be accomplishing we can't be accomplishing you can't be accomplishing they can't be accomplishing
Perfect
I can't have accomplished you can't have accomplished he can't have accomplished we can't have accomplished you can't have accomplished they can't have accomplished
V-ing perfect
I can't have been accomplishing you can't have been accomplishing he can't have been accomplishing we can't have been accomplishing you can't have been accomplishing they can't have been accomplishing
Interrogative form
Simple form
can I accomplish? can you accomplish? can he accomplish? can we accomplish? can you accomplish? can they accomplish?
V-ing form
can I be accomplishing? can you be accomplishing? can he be accomplishing? can we be accomplishing? can you be accomplishing? can they be accomplishing?
Perfect
can I have accomplished? can you have accomplished? can he have accomplished? can we have accomplished? can you have accomplished? can they have accomplished?
V-ing perfect
can I have been accomplishing? can you have been accomplishing? can he have been accomplishing? can we have been accomplishing? can you have been accomplishing? can they have been accomplishing?
Interro-negative form
Simple form
can't I accomplish? can't you accomplish? can't he accomplish? can't we accomplish? can't you accomplish? can't they accomplish?
V-ing form
can't I be accomplishing? can't you be accomplishing? can't he be accomplishing? can't we be accomplishing? can't you be accomplishing? can't they be accomplishing?
Perfect
can't I have accomplished? can't you have accomplished? can't he have accomplished? can't we have accomplished? can't you have accomplished? can't they have accomplished?
V-ing perfect
can't I have been accomplishing? can't you have been accomplishing? can't he have been accomplishing? can't we have been accomplishing? can't you have been accomplishing? can't they have been accomplishing?