English verb conjugation
COULD OVERRUN

Irregular verb: overrun - overran - overrun

Affirmation

Simple form	V-ing form
I could overrun you could overrun he could overrun we could overrun you could overrun they could overrun	I could be overrunning you could be overrunning he could be overrunning we could be overrunning you could be overrunning they could be overrunning
Perfect	V-ing perfect
I could have overrun you could have overrun he could have overrun we could have overrun you could have overrun they could have overrun	I could have been overrunning you could have been overrunning he could have been overrunning we could have been overrunning you could have been overrunning they could have been overrunning

Negation

Simple form	V-ing form
I couldn't overrun you couldn't overrun he couldn't overrun we couldn't overrun you couldn't overrun they couldn't overrun	I couldn't be overrunning you couldn't be overrunning he couldn't be overrunning we couldn't be overrunning you couldn't be overrunning they couldn't be overrunning
Perfect	V-ing perfect
I couldn't have overrun you couldn't have overrun he couldn't have overrun we couldn't have overrun you couldn't have overrun they couldn't have overrun	I couldn't have been overrunning you couldn't have been overrunning he couldn't have been overrunning we couldn't have been overrunning you couldn't have been overrunning they couldn't have been overrunning

Interrogative form

Simple form	V-ing form
could I overrun? could you overrun? could he overrun? could we overrun? could you overrun? could they overrun?	could I be overrunning? could you be overrunning? could he be overrunning? could we be overrunning? could you be overrunning? could they be overrunning?
Perfect	V-ing perfect
could I have overrun? could you have overrun? could he have overrun? could we have overrun? could you have overrun? could they have overrun?	could I have been overrunning? could you have been overrunning? could he have been overrunning? could we have been overrunning? could you have been overrunning? could they have been overrunning?

Interro-negative form

Simple form	V-ing form
couldn't I overrun? couldn't you overrun? couldn't he overrun? couldn't we overrun? couldn't you overrun? couldn't they overrun?	couldn't I be overrunning? couldn't you be overrunning? couldn't he be overrunning? couldn't we be overrunning? couldn't you be overrunning? couldn't they be overrunning?
Perfect	V-ing perfect
couldn't I have overrun? couldn't you have overrun? couldn't he have overrun? couldn't we have overrun? couldn't you have overrun? couldn't they have overrun?	couldn't I have been overrunning? couldn't you have been overrunning? couldn't he have been overrunning? couldn't we have been overrunning? couldn't you have been overrunning? couldn't they have been overrunning?