English verb conjugation
COULD BARBECUE

Regular verb: barbecue - barbecued - barbecued

Affirmation

Simple form	V-ing form
I could barbecue you could barbecue she could barbecue we could barbecue you could barbecue they could barbecue	I could be barbecuing you could be barbecuing she could be barbecuing we could be barbecuing you could be barbecuing they could be barbecuing
Perfect	V-ing perfect
I could have barbecued you could have barbecued she could have barbecued we could have barbecued you could have barbecued they could have barbecued	I could have been barbecuing you could have been barbecuing she could have been barbecuing we could have been barbecuing you could have been barbecuing they could have been barbecuing

Negation

Simple form	V-ing form
I could not barbecue you could not barbecue she could not barbecue we could not barbecue you could not barbecue they could not barbecue	I could not be barbecuing you could not be barbecuing she could not be barbecuing we could not be barbecuing you could not be barbecuing they could not be barbecuing
Perfect	V-ing perfect
I could not have barbecued you could not have barbecued she could not have barbecued we could not have barbecued you could not have barbecued they could not have barbecued	I could not have been barbecuing you could not have been barbecuing she could not have been barbecuing we could not have been barbecuing you could not have been barbecuing they could not have been barbecuing

Interrogative form

Simple form	V-ing form
could I barbecue? could you barbecue? could she barbecue? could we barbecue? could you barbecue? could they barbecue?	could I be barbecuing? could you be barbecuing? could she be barbecuing? could we be barbecuing? could you be barbecuing? could they be barbecuing?
Perfect	V-ing perfect
could I have barbecued? could you have barbecued? could she have barbecued? could we have barbecued? could you have barbecued? could they have barbecued?	could I have been barbecuing? could you have been barbecuing? could she have been barbecuing? could we have been barbecuing? could you have been barbecuing? could they have been barbecuing?

Interro-negative form

Simple form	V-ing form
could I not barbecue? could you not barbecue? could she not barbecue? could we not barbecue? could you not barbecue? could they not barbecue?	could I not be barbecuing? could you not be barbecuing? could she not be barbecuing? could we not be barbecuing? could you not be barbecuing? could they not be barbecuing?
Perfect	V-ing perfect
could I not have barbecued? could you not have barbecued? could she not have barbecued? could we not have barbecued? could you not have barbecued? could they not have barbecued?	could I not have been barbecuing? could you not have been barbecuing? could she not have been barbecuing? could we not have been barbecuing? could you not have been barbecuing? could they not have been barbecuing?