English verb conjugation
COULD PROTRACT

Regular verb: protract - protracted - protracted

Affirmation

Simple form	V-ing form
I could protract you could protract he could protract we could protract you could protract they could protract	I could be protracting you could be protracting he could be protracting we could be protracting you could be protracting they could be protracting
Perfect	V-ing perfect
I could have protracted you could have protracted he could have protracted we could have protracted you could have protracted they could have protracted	I could have been protracting you could have been protracting he could have been protracting we could have been protracting you could have been protracting they could have been protracting

Negation

Simple form	V-ing form
I could not protract you could not protract he could not protract we could not protract you could not protract they could not protract	I could not be protracting you could not be protracting he could not be protracting we could not be protracting you could not be protracting they could not be protracting
Perfect	V-ing perfect
I could not have protracted you could not have protracted he could not have protracted we could not have protracted you could not have protracted they could not have protracted	I could not have been protracting you could not have been protracting he could not have been protracting we could not have been protracting you could not have been protracting they could not have been protracting

Interrogative form

Simple form	V-ing form
could I protract? could you protract? could he protract? could we protract? could you protract? could they protract?	could I be protracting? could you be protracting? could he be protracting? could we be protracting? could you be protracting? could they be protracting?
Perfect	V-ing perfect
could I have protracted? could you have protracted? could he have protracted? could we have protracted? could you have protracted? could they have protracted?	could I have been protracting? could you have been protracting? could he have been protracting? could we have been protracting? could you have been protracting? could they have been protracting?

Interro-negative form

Simple form	V-ing form
could I not protract? could you not protract? could he not protract? could we not protract? could you not protract? could they not protract?	could I not be protracting? could you not be protracting? could he not be protracting? could we not be protracting? could you not be protracting? could they not be protracting?
Perfect	V-ing perfect
could I not have protracted? could you not have protracted? could he not have protracted? could we not have protracted? could you not have protracted? could they not have protracted?	could I not have been protracting? could you not have been protracting? could he not have been protracting? could we not have been protracting? could you not have been protracting? could they not have been protracting?