I can knight you can knight he can knight we can knight you can knight they can knight
V-ing form
I can be knighting you can be knighting he can be knighting we can be knighting you can be knighting they can be knighting
Perfect
I can have knighted you can have knighted he can have knighted we can have knighted you can have knighted they can have knighted
V-ing perfect
I can have been knighting you can have been knighting he can have been knighting we can have been knighting you can have been knighting they can have been knighting
Negation
Simple form
I cannot knight you cannot knight he cannot knight we cannot knight you cannot knight they cannot knight
V-ing form
I cannot be knighting you cannot be knighting he cannot be knighting we cannot be knighting you cannot be knighting they cannot be knighting
Perfect
I cannot have knighted you cannot have knighted he cannot have knighted we cannot have knighted you cannot have knighted they cannot have knighted
V-ing perfect
I cannot have been knighting you cannot have been knighting he cannot have been knighting we cannot have been knighting you cannot have been knighting they cannot have been knighting
Interrogative form
Simple form
can I knight? can you knight? can he knight? can we knight? can you knight? can they knight?
V-ing form
can I be knighting? can you be knighting? can he be knighting? can we be knighting? can you be knighting? can they be knighting?
Perfect
can I have knighted? can you have knighted? can he have knighted? can we have knighted? can you have knighted? can they have knighted?
V-ing perfect
can I have been knighting? can you have been knighting? can he have been knighting? can we have been knighting? can you have been knighting? can they have been knighting?
Interro-negative form
Simple form
can I not knight? can you not knight? can he not knight? can we not knight? can you not knight? can they not knight?
V-ing form
can I not be knighting? can you not be knighting? can he not be knighting? can we not be knighting? can you not be knighting? can they not be knighting?
Perfect
can I not have knighted? can you not have knighted? can he not have knighted? can we not have knighted? can you not have knighted? can they not have knighted?
V-ing perfect
can I not have been knighting? can you not have been knighting? can he not have been knighting? can we not have been knighting? can you not have been knighting? can they not have been knighting?