could emboss
Regular verb: emboss - embossed- embossed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could emboss
you could emboss
she could emboss
we could emboss
you could emboss
they could emboss 	I could be embossing
you could be embossing
she could be embossing
we could be embossing
you could be embossing
they could be embossing	I could have embossed
you could have embossed
she could have embossed
we could have embossed
you could have embossed
they could have embossed	I could have been embossing
you could have been embossing
she could have been embossing
we could have been embossing
you could have been embossing
they could have been embossing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't emboss
you couldn't emboss
she couldn't emboss
we couldn't emboss
you couldn't emboss
they couldn't emboss 	I couldn't be embossing
you couldn't be embossing
she couldn't be embossing
we couldn't be embossing
you couldn't be embossing
they couldn't be embossing	I couldn't have embossed
you couldn't have embossed
she couldn't have embossed
we couldn't have embossed
you couldn't have embossed
they couldn't have embossed	I couldn't have been embossing
you couldn't have been embossing
she couldn't have been embossing
we couldn't have been embossing
you couldn't have been embossing
they couldn't have been embossing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I emboss?
could you emboss?
could she emboss?
could we emboss?
could you emboss?
could they emboss? 	could I be embossing?
could you be embossing?
could she be embossing?
could we be embossing?
could you be embossing?
could they be embossing? 	could I have embossed?
could you have embossed?
could she have embossed?
could we have embossed?
could you have embossed?
could they have embossed? 	could I have been embossing?
could you have been embossing?
could she have been embossing?
could we have been embossing?
could you have been embossing?
could they have been embossing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I emboss?
couldn't you emboss?
couldn't she emboss?
couldn't we emboss?
couldn't you emboss?
couldn't they emboss? 	couldn't I be embossing?
couldn't you be embossing?
couldn't she be embossing?
couldn't we be embossing?
couldn't you be embossing?
couldn't they be embossing? 	couldn't I have embossed?
couldn't you have embossed?
couldn't she have embossed?
couldn't we have embossed?
couldn't you have embossed?
couldn't they have embossed? 	couldn't I have been embossing?
couldn't you have been embossing?
couldn't she have been embossing?
couldn't we have been embossing?
couldn't you have been embossing?
couldn't they have been embossing?