English verb conjugation
COULD OVERADVANCE

Regular verb: overadvance - overadvanced - overadvanced

Affirmation

Simple form	V-ing form
I could overadvance you could overadvance he could overadvance we could overadvance you could overadvance they could overadvance	I could be overadvancing you could be overadvancing he could be overadvancing we could be overadvancing you could be overadvancing they could be overadvancing
Perfect	V-ing perfect
I could have overadvanced you could have overadvanced he could have overadvanced we could have overadvanced you could have overadvanced they could have overadvanced	I could have been overadvancing you could have been overadvancing he could have been overadvancing we could have been overadvancing you could have been overadvancing they could have been overadvancing

Negation

Simple form	V-ing form
I couldn't overadvance you couldn't overadvance he couldn't overadvance we couldn't overadvance you couldn't overadvance they couldn't overadvance	I couldn't be overadvancing you couldn't be overadvancing he couldn't be overadvancing we couldn't be overadvancing you couldn't be overadvancing they couldn't be overadvancing
Perfect	V-ing perfect
I couldn't have overadvanced you couldn't have overadvanced he couldn't have overadvanced we couldn't have overadvanced you couldn't have overadvanced they couldn't have overadvanced	I couldn't have been overadvancing you couldn't have been overadvancing he couldn't have been overadvancing we couldn't have been overadvancing you couldn't have been overadvancing they couldn't have been overadvancing

Interrogative form

Simple form	V-ing form
could I overadvance? could you overadvance? could he overadvance? could we overadvance? could you overadvance? could they overadvance?	could I be overadvancing? could you be overadvancing? could he be overadvancing? could we be overadvancing? could you be overadvancing? could they be overadvancing?
Perfect	V-ing perfect
could I have overadvanced? could you have overadvanced? could he have overadvanced? could we have overadvanced? could you have overadvanced? could they have overadvanced?	could I have been overadvancing? could you have been overadvancing? could he have been overadvancing? could we have been overadvancing? could you have been overadvancing? could they have been overadvancing?

Interro-negative form

Simple form	V-ing form
couldn't I overadvance? couldn't you overadvance? couldn't he overadvance? couldn't we overadvance? couldn't you overadvance? couldn't they overadvance?	couldn't I be overadvancing? couldn't you be overadvancing? couldn't he be overadvancing? couldn't we be overadvancing? couldn't you be overadvancing? couldn't they be overadvancing?
Perfect	V-ing perfect
couldn't I have overadvanced? couldn't you have overadvanced? couldn't he have overadvanced? couldn't we have overadvanced? couldn't you have overadvanced? couldn't they have overadvanced?	couldn't I have been overadvancing? couldn't you have been overadvancing? couldn't he have been overadvancing? couldn't we have been overadvancing? couldn't you have been overadvancing? couldn't they have been overadvancing?