could seam
Regular verb: seam - seamed- seamed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could seam
you could seam
she could seam
we could seam
you could seam
they could seam 	I could be seaming
you could be seaming
she could be seaming
we could be seaming
you could be seaming
they could be seaming	I could have seamed
you could have seamed
she 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
she 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 	Perfect 	V-ing perfect 	
I couldn't seam
you couldn't seam
she couldn't seam
we couldn't seam
you couldn't seam
they couldn't seam 	I couldn't be seaming
you couldn't be seaming
she couldn't be seaming
we couldn't be seaming
you couldn't be seaming
they couldn't be seaming	I couldn't have seamed
you couldn't have seamed
she couldn't have seamed
we couldn't have seamed
you couldn't have seamed
they couldn't have seamed	I couldn't have been seaming
you couldn't have been seaming
she couldn't have been seaming
we couldn't have been seaming
you couldn't have been seaming
they couldn't have been seaming	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I seam?
could you seam?
could she seam?
could we seam?
could you seam?
could they seam? 	could I be seaming?
could you be seaming?
could she be seaming?
could we be seaming?
could you be seaming?
could they be seaming? 	could I have seamed?
could you have seamed?
could she 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 she 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 	Perfect 	V-ing perfect 	
couldn't I seam?
couldn't you seam?
couldn't she seam?
couldn't we seam?
couldn't you seam?
couldn't they seam? 	couldn't I be seaming?
couldn't you be seaming?
couldn't she be seaming?
couldn't we be seaming?
couldn't you be seaming?
couldn't they be seaming? 	couldn't I have seamed?
couldn't you have seamed?
couldn't she have seamed?
couldn't we have seamed?
couldn't you have seamed?
couldn't they have seamed? 	couldn't I have been seaming?
couldn't you have been seaming?
couldn't she have been seaming?
couldn't we have been seaming?
couldn't you have been seaming?
couldn't they have been seaming?