English verb conjugation
COULD OVERINSTRUCT

Regular verb: overinstruct - overinstructed - overinstructed

Affirmation

Simple form	V-ing form
I could overinstruct you could overinstruct she could overinstruct we could overinstruct you could overinstruct they could overinstruct	I could be overinstructing you could be overinstructing she could be overinstructing we could be overinstructing you could be overinstructing they could be overinstructing
Perfect	V-ing perfect
I could have overinstructed you could have overinstructed she could have overinstructed we could have overinstructed you could have overinstructed they could have overinstructed	I could have been overinstructing you could have been overinstructing she could have been overinstructing we could have been overinstructing you could have been overinstructing they could have been overinstructing

Negation

Simple form	V-ing form
I couldn't overinstruct you couldn't overinstruct she couldn't overinstruct we couldn't overinstruct you couldn't overinstruct they couldn't overinstruct	I couldn't be overinstructing you couldn't be overinstructing she couldn't be overinstructing we couldn't be overinstructing you couldn't be overinstructing they couldn't be overinstructing
Perfect	V-ing perfect
I couldn't have overinstructed you couldn't have overinstructed she couldn't have overinstructed we couldn't have overinstructed you couldn't have overinstructed they couldn't have overinstructed	I couldn't have been overinstructing you couldn't have been overinstructing she couldn't have been overinstructing we couldn't have been overinstructing you couldn't have been overinstructing they couldn't have been overinstructing

Interrogative form

Simple form	V-ing form
could I overinstruct? could you overinstruct? could she overinstruct? could we overinstruct? could you overinstruct? could they overinstruct?	could I be overinstructing? could you be overinstructing? could she be overinstructing? could we be overinstructing? could you be overinstructing? could they be overinstructing?
Perfect	V-ing perfect
could I have overinstructed? could you have overinstructed? could she have overinstructed? could we have overinstructed? could you have overinstructed? could they have overinstructed?	could I have been overinstructing? could you have been overinstructing? could she have been overinstructing? could we have been overinstructing? could you have been overinstructing? could they have been overinstructing?

Interro-negative form

Simple form	V-ing form
couldn't I overinstruct? couldn't you overinstruct? couldn't she overinstruct? couldn't we overinstruct? couldn't you overinstruct? couldn't they overinstruct?	couldn't I be overinstructing? couldn't you be overinstructing? couldn't she be overinstructing? couldn't we be overinstructing? couldn't you be overinstructing? couldn't they be overinstructing?
Perfect	V-ing perfect
couldn't I have overinstructed? couldn't you have overinstructed? couldn't she have overinstructed? couldn't we have overinstructed? couldn't you have overinstructed? couldn't they have overinstructed?	couldn't I have been overinstructing? couldn't you have been overinstructing? couldn't she have been overinstructing? couldn't we have been overinstructing? couldn't you have been overinstructing? couldn't they have been overinstructing?