English verb conjugation
COULD OVERSTATE

Regular verb: overstate - overstated - overstated

Affirmation

Simple form	V-ing form
I could overstate you could overstate he could overstate we could overstate you could overstate they could overstate	I could be overstating you could be overstating he could be overstating we could be overstating you could be overstating they could be overstating
Perfect	V-ing perfect
I could have overstated you could have overstated he could have overstated we could have overstated you could have overstated they could have overstated	I could have been overstating you could have been overstating he could have been overstating we could have been overstating you could have been overstating they could have been overstating

Negation

Simple form	V-ing form
I could not overstate you could not overstate he could not overstate we could not overstate you could not overstate they could not overstate	I could not be overstating you could not be overstating he could not be overstating we could not be overstating you could not be overstating they could not be overstating
Perfect	V-ing perfect
I could not have overstated you could not have overstated he could not have overstated we could not have overstated you could not have overstated they could not have overstated	I could not have been overstating you could not have been overstating he could not have been overstating we could not have been overstating you could not have been overstating they could not have been overstating

Interrogative form

Simple form	V-ing form
could I overstate? could you overstate? could he overstate? could we overstate? could you overstate? could they overstate?	could I be overstating? could you be overstating? could he be overstating? could we be overstating? could you be overstating? could they be overstating?
Perfect	V-ing perfect
could I have overstated? could you have overstated? could he have overstated? could we have overstated? could you have overstated? could they have overstated?	could I have been overstating? could you have been overstating? could he have been overstating? could we have been overstating? could you have been overstating? could they have been overstating?

Interro-negative form

Simple form	V-ing form
could I not overstate? could you not overstate? could he not overstate? could we not overstate? could you not overstate? could they not overstate?	could I not be overstating? could you not be overstating? could he not be overstating? could we not be overstating? could you not be overstating? could they not be overstating?
Perfect	V-ing perfect
could I not have overstated? could you not have overstated? could he not have overstated? could we not have overstated? could you not have overstated? could they not have overstated?	could I not have been overstating? could you not have been overstating? could he not have been overstating? could we not have been overstating? could you not have been overstating? could they not have been overstating?