English verb conjugation
COULD EXTENUATE

Regular verb: extenuate - extenuated - extenuated

Affirmation

Simple form	V-ing form
I could extenuate you could extenuate he could extenuate we could extenuate you could extenuate they could extenuate	I could be extenuating you could be extenuating he could be extenuating we could be extenuating you could be extenuating they could be extenuating
Perfect	V-ing perfect
I could have extenuated you could have extenuated he could have extenuated we could have extenuated you could have extenuated they could have extenuated	I could have been extenuating you could have been extenuating he could have been extenuating we could have been extenuating you could have been extenuating they could have been extenuating

Negation

Simple form	V-ing form
I could not extenuate you could not extenuate he could not extenuate we could not extenuate you could not extenuate they could not extenuate	I could not be extenuating you could not be extenuating he could not be extenuating we could not be extenuating you could not be extenuating they could not be extenuating
Perfect	V-ing perfect
I could not have extenuated you could not have extenuated he could not have extenuated we could not have extenuated you could not have extenuated they could not have extenuated	I could not have been extenuating you could not have been extenuating he could not have been extenuating we could not have been extenuating you could not have been extenuating they could not have been extenuating

Interrogative form

Simple form	V-ing form
could I extenuate? could you extenuate? could he extenuate? could we extenuate? could you extenuate? could they extenuate?	could I be extenuating? could you be extenuating? could he be extenuating? could we be extenuating? could you be extenuating? could they be extenuating?
Perfect	V-ing perfect
could I have extenuated? could you have extenuated? could he have extenuated? could we have extenuated? could you have extenuated? could they have extenuated?	could I have been extenuating? could you have been extenuating? could he have been extenuating? could we have been extenuating? could you have been extenuating? could they have been extenuating?

Interro-negative form

Simple form	V-ing form
could I not extenuate? could you not extenuate? could he not extenuate? could we not extenuate? could you not extenuate? could they not extenuate?	could I not be extenuating? could you not be extenuating? could he not be extenuating? could we not be extenuating? could you not be extenuating? could they not be extenuating?
Perfect	V-ing perfect
could I not have extenuated? could you not have extenuated? could he not have extenuated? could we not have extenuated? could you not have extenuated? could they not have extenuated?	could I not have been extenuating? could you not have been extenuating? could he not have been extenuating? could we not have been extenuating? could you not have been extenuating? could they not have been extenuating?