could matte
Regular verb: matte - matted- matted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could matte
you could matte
he could matte
we could matte
you could matte
they could matte 	I could be matting
you could be matting
he could be matting
we could be matting
you could be matting
they could be matting	I could have matted
you could have matted
he could have matted
we could have matted
you could have matted
they could have matted	I could have been matting
you could have been matting
he could have been matting
we could have been matting
you could have been matting
they could have been matting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not matte
you could not matte
he could not matte
we could not matte
you could not matte
they could not matte 	I could not be matting
you could not be matting
he could not be matting
we could not be matting
you could not be matting
they could not be matting	I could not have matted
you could not have matted
he could not have matted
we could not have matted
you could not have matted
they could not have matted	I could not have been matting
you could not have been matting
he could not have been matting
we could not have been matting
you could not have been matting
they could not have been matting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I matte?
could you matte?
could he matte?
could we matte?
could you matte?
could they matte? 	could I be matting?
could you be matting?
could he be matting?
could we be matting?
could you be matting?
could they be matting? 	could I have matted?
could you have matted?
could he have matted?
could we have matted?
could you have matted?
could they have matted? 	could I have been matting?
could you have been matting?
could he have been matting?
could we have been matting?
could you have been matting?
could they have been matting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not matte?
could you not matte?
could he not matte?
could we not matte?
could you not matte?
could they not matte? 	could I not be matting?
could you not be matting?
could he not be matting?
could we not be matting?
could you not be matting?
could they not be matting? 	could I not have matted?
could you not have matted?
could he not have matted?
could we not have matted?
could you not have matted?
could they not have matted? 	could I not have been matting?
could you not have been matting?
could he not have been matting?
could we not have been matting?
could you not have been matting?
could they not have been matting?