English verb conjugation
COULD OVEREXTRACT

Regular verb: overextract - overextracted - overextracted

Affirmation

Simple form	V-ing form
I could overextract you could overextract he could overextract we could overextract you could overextract they could overextract	I could be overextracting you could be overextracting he could be overextracting we could be overextracting you could be overextracting they could be overextracting
Perfect	V-ing perfect
I could have overextracted you could have overextracted he could have overextracted we could have overextracted you could have overextracted they could have overextracted	I could have been overextracting you could have been overextracting he could have been overextracting we could have been overextracting you could have been overextracting they could have been overextracting

Negation

Simple form	V-ing form
I couldn't overextract you couldn't overextract he couldn't overextract we couldn't overextract you couldn't overextract they couldn't overextract	I couldn't be overextracting you couldn't be overextracting he couldn't be overextracting we couldn't be overextracting you couldn't be overextracting they couldn't be overextracting
Perfect	V-ing perfect
I couldn't have overextracted you couldn't have overextracted he couldn't have overextracted we couldn't have overextracted you couldn't have overextracted they couldn't have overextracted	I couldn't have been overextracting you couldn't have been overextracting he couldn't have been overextracting we couldn't have been overextracting you couldn't have been overextracting they couldn't have been overextracting

Interrogative form

Simple form	V-ing form
could I overextract? could you overextract? could he overextract? could we overextract? could you overextract? could they overextract?	could I be overextracting? could you be overextracting? could he be overextracting? could we be overextracting? could you be overextracting? could they be overextracting?
Perfect	V-ing perfect
could I have overextracted? could you have overextracted? could he have overextracted? could we have overextracted? could you have overextracted? could they have overextracted?	could I have been overextracting? could you have been overextracting? could he have been overextracting? could we have been overextracting? could you have been overextracting? could they have been overextracting?

Interro-negative form

Simple form	V-ing form
couldn't I overextract? couldn't you overextract? couldn't he overextract? couldn't we overextract? couldn't you overextract? couldn't they overextract?	couldn't I be overextracting? couldn't you be overextracting? couldn't he be overextracting? couldn't we be overextracting? couldn't you be overextracting? couldn't they be overextracting?
Perfect	V-ing perfect
couldn't I have overextracted? couldn't you have overextracted? couldn't he have overextracted? couldn't we have overextracted? couldn't you have overextracted? couldn't they have overextracted?	couldn't I have been overextracting? couldn't you have been overextracting? couldn't he have been overextracting? couldn't we have been overextracting? couldn't you have been overextracting? couldn't they have been overextracting?