English verb conjugation
COULD BULLDOG

Regular verb: bulldog - bulldoged - bulldoged

Affirmation

Simple form	V-ing form
I could bulldog you could bulldog he could bulldog we could bulldog you could bulldog they could bulldog	I could be bulldoging you could be bulldoging he could be bulldoging we could be bulldoging you could be bulldoging they could be bulldoging
Perfect	V-ing perfect
I could have bulldoged you could have bulldoged he could have bulldoged we could have bulldoged you could have bulldoged they could have bulldoged	I could have been bulldoging you could have been bulldoging he could have been bulldoging we could have been bulldoging you could have been bulldoging they could have been bulldoging

Negation

Simple form	V-ing form
I could not bulldog you could not bulldog he could not bulldog we could not bulldog you could not bulldog they could not bulldog	I could not be bulldoging you could not be bulldoging he could not be bulldoging we could not be bulldoging you could not be bulldoging they could not be bulldoging
Perfect	V-ing perfect
I could not have bulldoged you could not have bulldoged he could not have bulldoged we could not have bulldoged you could not have bulldoged they could not have bulldoged	I could not have been bulldoging you could not have been bulldoging he could not have been bulldoging we could not have been bulldoging you could not have been bulldoging they could not have been bulldoging

Interrogative form

Simple form	V-ing form
could I bulldog? could you bulldog? could he bulldog? could we bulldog? could you bulldog? could they bulldog?	could I be bulldoging? could you be bulldoging? could he be bulldoging? could we be bulldoging? could you be bulldoging? could they be bulldoging?
Perfect	V-ing perfect
could I have bulldoged? could you have bulldoged? could he have bulldoged? could we have bulldoged? could you have bulldoged? could they have bulldoged?	could I have been bulldoging? could you have been bulldoging? could he have been bulldoging? could we have been bulldoging? could you have been bulldoging? could they have been bulldoging?

Interro-negative form

Simple form	V-ing form
could I not bulldog? could you not bulldog? could he not bulldog? could we not bulldog? could you not bulldog? could they not bulldog?	could I not be bulldoging? could you not be bulldoging? could he not be bulldoging? could we not be bulldoging? could you not be bulldoging? could they not be bulldoging?
Perfect	V-ing perfect
could I not have bulldoged? could you not have bulldoged? could he not have bulldoged? could we not have bulldoged? could you not have bulldoged? could they not have bulldoged?	could I not have been bulldoging? could you not have been bulldoging? could he not have been bulldoging? could we not have been bulldoging? could you not have been bulldoging? could they not have been bulldoging?