I can dry you can dry he can dry we can dry you can dry they can dry
V-ing form
I can be drying you can be drying he can be drying we can be drying you can be drying they can be drying
Perfect
I can have dried you can have dried he can have dried we can have dried you can have dried they can have dried
V-ing perfect
I can have been drying you can have been drying he can have been drying we can have been drying you can have been drying they can have been drying
Negation
Simple form
I cannot dry you cannot dry he cannot dry we cannot dry you cannot dry they cannot dry
V-ing form
I cannot be drying you cannot be drying he cannot be drying we cannot be drying you cannot be drying they cannot be drying
Perfect
I cannot have dried you cannot have dried he cannot have dried we cannot have dried you cannot have dried they cannot have dried
V-ing perfect
I cannot have been drying you cannot have been drying he cannot have been drying we cannot have been drying you cannot have been drying they cannot have been drying
Interrogative form
Simple form
can I dry? can you dry? can he dry? can we dry? can you dry? can they dry?
V-ing form
can I be drying? can you be drying? can he be drying? can we be drying? can you be drying? can they be drying?
Perfect
can I have dried? can you have dried? can he have dried? can we have dried? can you have dried? can they have dried?
V-ing perfect
can I have been drying? can you have been drying? can he have been drying? can we have been drying? can you have been drying? can they have been drying?
Interro-negative form
Simple form
can I not dry? can you not dry? can he not dry? can we not dry? can you not dry? can they not dry?
V-ing form
can I not be drying? can you not be drying? can he not be drying? can we not be drying? can you not be drying? can they not be drying?
Perfect
can I not have dried? can you not have dried? can he not have dried? can we not have dried? can you not have dried? can they not have dried?
V-ing perfect
can I not have been drying? can you not have been drying? can he not have been drying? can we not have been drying? can you not have been drying? can they not have been drying?