English verb conjugation
COULD APPERTAIN

Regular verb: appertain - appertained - appertained

Affirmation

Simple form	V-ing form
I could appertain you could appertain she could appertain we could appertain you could appertain they could appertain	I could be appertaining you could be appertaining she could be appertaining we could be appertaining you could be appertaining they could be appertaining
Perfect	V-ing perfect
I could have appertained you could have appertained she could have appertained we could have appertained you could have appertained they could have appertained	I could have been appertaining you could have been appertaining she could have been appertaining we could have been appertaining you could have been appertaining they could have been appertaining

Negation

Simple form	V-ing form
I could not appertain you could not appertain she could not appertain we could not appertain you could not appertain they could not appertain	I could not be appertaining you could not be appertaining she could not be appertaining we could not be appertaining you could not be appertaining they could not be appertaining
Perfect	V-ing perfect
I could not have appertained you could not have appertained she could not have appertained we could not have appertained you could not have appertained they could not have appertained	I could not have been appertaining you could not have been appertaining she could not have been appertaining we could not have been appertaining you could not have been appertaining they could not have been appertaining

Interrogative form

Simple form	V-ing form
could I appertain? could you appertain? could she appertain? could we appertain? could you appertain? could they appertain?	could I be appertaining? could you be appertaining? could she be appertaining? could we be appertaining? could you be appertaining? could they be appertaining?
Perfect	V-ing perfect
could I have appertained? could you have appertained? could she have appertained? could we have appertained? could you have appertained? could they have appertained?	could I have been appertaining? could you have been appertaining? could she have been appertaining? could we have been appertaining? could you have been appertaining? could they have been appertaining?

Interro-negative form

Simple form	V-ing form
could I not appertain? could you not appertain? could she not appertain? could we not appertain? could you not appertain? could they not appertain?	could I not be appertaining? could you not be appertaining? could she not be appertaining? could we not be appertaining? could you not be appertaining? could they not be appertaining?
Perfect	V-ing perfect
could I not have appertained? could you not have appertained? could she not have appertained? could we not have appertained? could you not have appertained? could they not have appertained?	could I not have been appertaining? could you not have been appertaining? could she not have been appertaining? could we not have been appertaining? could you not have been appertaining? could they not have been appertaining?