English verb conjugation
COULD KNIGHT

Regular verb: knight - knighted - knighted

Affirmation

Simple form	V-ing form
I could knight you could knight she could knight we could knight you could knight they could knight	I could be knighting you could be knighting she could be knighting we could be knighting you could be knighting they could be knighting
Perfect	V-ing perfect
I could have knighted you could have knighted she could have knighted we could have knighted you could have knighted they could have knighted	I could have been knighting you could have been knighting she could have been knighting we could have been knighting you could have been knighting they could have been knighting

Negation

Simple form	V-ing form
I couldn't knight you couldn't knight she couldn't knight we couldn't knight you couldn't knight they couldn't knight	I couldn't be knighting you couldn't be knighting she couldn't be knighting we couldn't be knighting you couldn't be knighting they couldn't be knighting
Perfect	V-ing perfect
I couldn't have knighted you couldn't have knighted she couldn't have knighted we couldn't have knighted you couldn't have knighted they couldn't have knighted	I couldn't have been knighting you couldn't have been knighting she couldn't have been knighting we couldn't have been knighting you couldn't have been knighting they couldn't have been knighting

Interrogative form

Simple form	V-ing form
could I knight? could you knight? could she knight? could we knight? could you knight? could they knight?	could I be knighting? could you be knighting? could she be knighting? could we be knighting? could you be knighting? could they be knighting?
Perfect	V-ing perfect
could I have knighted? could you have knighted? could she have knighted? could we have knighted? could you have knighted? could they have knighted?	could I have been knighting? could you have been knighting? could she have been knighting? could we have been knighting? could you have been knighting? could they have been knighting?

Interro-negative form

Simple form	V-ing form
couldn't I knight? couldn't you knight? couldn't she knight? couldn't we knight? couldn't you knight? couldn't they knight?	couldn't I be knighting? couldn't you be knighting? couldn't she be knighting? couldn't we be knighting? couldn't you be knighting? couldn't they be knighting?
Perfect	V-ing perfect
couldn't I have knighted? couldn't you have knighted? couldn't she have knighted? couldn't we have knighted? couldn't you have knighted? couldn't they have knighted?	couldn't I have been knighting? couldn't you have been knighting? couldn't she have been knighting? couldn't we have been knighting? couldn't you have been knighting? couldn't they have been knighting?