English verb conjugation
COULD SEAM

Regular verb: seam - seamed - seamed

Affirmation

Simple form	V-ing form
I could seam you could seam he could seam we could seam you could seam they could seam	I could be seaming you could be seaming he could be seaming we could be seaming you could be seaming they could be seaming
Perfect	V-ing perfect
I could have seamed you could have seamed he could have seamed we could have seamed you could have seamed they could have seamed	I could have been seaming you could have been seaming he could have been seaming we could have been seaming you could have been seaming they could have been seaming

Negation

Simple form	V-ing form
I could not seam you could not seam he could not seam we could not seam you could not seam they could not seam	I could not be seaming you could not be seaming he could not be seaming we could not be seaming you could not be seaming they could not be seaming
Perfect	V-ing perfect
I could not have seamed you could not have seamed he could not have seamed we could not have seamed you could not have seamed they could not have seamed	I could not have been seaming you could not have been seaming he could not have been seaming we could not have been seaming you could not have been seaming they could not have been seaming

Interrogative form

Simple form	V-ing form
could I seam? could you seam? could he seam? could we seam? could you seam? could they seam?	could I be seaming? could you be seaming? could he be seaming? could we be seaming? could you be seaming? could they be seaming?
Perfect	V-ing perfect
could I have seamed? could you have seamed? could he have seamed? could we have seamed? could you have seamed? could they have seamed?	could I have been seaming? could you have been seaming? could he have been seaming? could we have been seaming? could you have been seaming? could they have been seaming?

Interro-negative form

Simple form	V-ing form
could I not seam? could you not seam? could he not seam? could we not seam? could you not seam? could they not seam?	could I not be seaming? could you not be seaming? could he not be seaming? could we not be seaming? could you not be seaming? could they not be seaming?
Perfect	V-ing perfect
could I not have seamed? could you not have seamed? could he not have seamed? could we not have seamed? could you not have seamed? could they not have seamed?	could I not have been seaming? could you not have been seaming? could he not have been seaming? could we not have been seaming? could you not have been seaming? could they not have been seaming?