English verb conjugation
COULD OVERUSE

Regular verb: overuse - overused - overused

Affirmation

Simple form	V-ing form
I could overuse you could overuse she could overuse we could overuse you could overuse they could overuse	I could be overusing you could be overusing she could be overusing we could be overusing you could be overusing they could be overusing
Perfect	V-ing perfect
I could have overused you could have overused she could have overused we could have overused you could have overused they could have overused	I could have been overusing you could have been overusing she could have been overusing we could have been overusing you could have been overusing they could have been overusing

Negation

Simple form	V-ing form
I couldn't overuse you couldn't overuse she couldn't overuse we couldn't overuse you couldn't overuse they couldn't overuse	I couldn't be overusing you couldn't be overusing she couldn't be overusing we couldn't be overusing you couldn't be overusing they couldn't be overusing
Perfect	V-ing perfect
I couldn't have overused you couldn't have overused she couldn't have overused we couldn't have overused you couldn't have overused they couldn't have overused	I couldn't have been overusing you couldn't have been overusing she couldn't have been overusing we couldn't have been overusing you couldn't have been overusing they couldn't have been overusing

Interrogative form

Simple form	V-ing form
could I overuse? could you overuse? could she overuse? could we overuse? could you overuse? could they overuse?	could I be overusing? could you be overusing? could she be overusing? could we be overusing? could you be overusing? could they be overusing?
Perfect	V-ing perfect
could I have overused? could you have overused? could she have overused? could we have overused? could you have overused? could they have overused?	could I have been overusing? could you have been overusing? could she have been overusing? could we have been overusing? could you have been overusing? could they have been overusing?

Interro-negative form

Simple form	V-ing form
couldn't I overuse? couldn't you overuse? couldn't she overuse? couldn't we overuse? couldn't you overuse? couldn't they overuse?	couldn't I be overusing? couldn't you be overusing? couldn't she be overusing? couldn't we be overusing? couldn't you be overusing? couldn't they be overusing?
Perfect	V-ing perfect
couldn't I have overused? couldn't you have overused? couldn't she have overused? couldn't we have overused? couldn't you have overused? couldn't they have overused?	couldn't I have been overusing? couldn't you have been overusing? couldn't she have been overusing? couldn't we have been overusing? couldn't you have been overusing? couldn't they have been overusing?