English verb conjugation
COULD TRAM

Regular verb: tram - tramed - tramed

Affirmation

Simple form	V-ing form
I could tram you could tram she could tram we could tram you could tram they could tram	I could be traming you could be traming she could be traming we could be traming you could be traming they could be traming
Perfect	V-ing perfect
I could have tramed you could have tramed she could have tramed we could have tramed you could have tramed they could have tramed	I could have been traming you could have been traming she could have been traming we could have been traming you could have been traming they could have been traming

Negation

Simple form	V-ing form
I could not tram you could not tram she could not tram we could not tram you could not tram they could not tram	I could not be traming you could not be traming she could not be traming we could not be traming you could not be traming they could not be traming
Perfect	V-ing perfect
I could not have tramed you could not have tramed she could not have tramed we could not have tramed you could not have tramed they could not have tramed	I could not have been traming you could not have been traming she could not have been traming we could not have been traming you could not have been traming they could not have been traming

Interrogative form

Simple form	V-ing form
could I tram? could you tram? could she tram? could we tram? could you tram? could they tram?	could I be traming? could you be traming? could she be traming? could we be traming? could you be traming? could they be traming?
Perfect	V-ing perfect
could I have tramed? could you have tramed? could she have tramed? could we have tramed? could you have tramed? could they have tramed?	could I have been traming? could you have been traming? could she have been traming? could we have been traming? could you have been traming? could they have been traming?

Interro-negative form

Simple form	V-ing form
could I not tram? could you not tram? could she not tram? could we not tram? could you not tram? could they not tram?	could I not be traming? could you not be traming? could she not be traming? could we not be traming? could you not be traming? could they not be traming?
Perfect	V-ing perfect
could I not have tramed? could you not have tramed? could she not have tramed? could we not have tramed? could you not have tramed? could they not have tramed?	could I not have been traming? could you not have been traming? could she not have been traming? could we not have been traming? could you not have been traming? could they not have been traming?