English verb conjugation
COULD INVITE

Regular verb: invite - invited - invited

Affirmation

Simple form	V-ing form
I could invite you could invite he could invite we could invite you could invite they could invite	I could be inviting you could be inviting he could be inviting we could be inviting you could be inviting they could be inviting
Perfect	V-ing perfect
I could have invited you could have invited he could have invited we could have invited you could have invited they could have invited	I could have been inviting you could have been inviting he could have been inviting we could have been inviting you could have been inviting they could have been inviting

Negation

Simple form	V-ing form
I could not invite you could not invite he could not invite we could not invite you could not invite they could not invite	I could not be inviting you could not be inviting he could not be inviting we could not be inviting you could not be inviting they could not be inviting
Perfect	V-ing perfect
I could not have invited you could not have invited he could not have invited we could not have invited you could not have invited they could not have invited	I could not have been inviting you could not have been inviting he could not have been inviting we could not have been inviting you could not have been inviting they could not have been inviting

Interrogative form

Simple form	V-ing form
could I invite? could you invite? could he invite? could we invite? could you invite? could they invite?	could I be inviting? could you be inviting? could he be inviting? could we be inviting? could you be inviting? could they be inviting?
Perfect	V-ing perfect
could I have invited? could you have invited? could he have invited? could we have invited? could you have invited? could they have invited?	could I have been inviting? could you have been inviting? could he have been inviting? could we have been inviting? could you have been inviting? could they have been inviting?

Interro-negative form

Simple form	V-ing form
could I not invite? could you not invite? could he not invite? could we not invite? could you not invite? could they not invite?	could I not be inviting? could you not be inviting? could he not be inviting? could we not be inviting? could you not be inviting? could they not be inviting?
Perfect	V-ing perfect
could I not have invited? could you not have invited? could he not have invited? could we not have invited? could you not have invited? could they not have invited?	could I not have been inviting? could you not have been inviting? could he not have been inviting? could we not have been inviting? could you not have been inviting? could they not have been inviting?