English verb conjugation
COULD OVERSTATE

Regular verb: overstate - overstated - overstated

Affirmation

Simple form	V-ing form
I could overstate you could overstate she could overstate we could overstate you could overstate they could overstate	I could be overstating you could be overstating she 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 she 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 she 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 couldn't overstate you couldn't overstate she couldn't overstate we couldn't overstate you couldn't overstate they couldn't overstate	I couldn't be overstating you couldn't be overstating she couldn't be overstating we couldn't be overstating you couldn't be overstating they couldn't be overstating
Perfect	V-ing perfect
I couldn't have overstated you couldn't have overstated she couldn't have overstated we couldn't have overstated you couldn't have overstated they couldn't have overstated	I couldn't have been overstating you couldn't have been overstating she couldn't have been overstating we couldn't have been overstating you couldn't have been overstating they couldn't have been overstating

Interrogative form

Simple form	V-ing form
could I overstate? could you overstate? could she overstate? could we overstate? could you overstate? could they overstate?	could I be overstating? could you be overstating? could she 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 she 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 she 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
couldn't I overstate? couldn't you overstate? couldn't she overstate? couldn't we overstate? couldn't you overstate? couldn't they overstate?	couldn't I be overstating? couldn't you be overstating? couldn't she be overstating? couldn't we be overstating? couldn't you be overstating? couldn't they be overstating?
Perfect	V-ing perfect
couldn't I have overstated? couldn't you have overstated? couldn't she have overstated? couldn't we have overstated? couldn't you have overstated? couldn't they have overstated?	couldn't I have been overstating? couldn't you have been overstating? couldn't she have been overstating? couldn't we have been overstating? couldn't you have been overstating? couldn't they have been overstating?