could boss
Regular verb: boss - bossed- bossed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could boss
you could boss
he could boss
we could boss
you could boss
they could boss 	I could be bossing
you could be bossing
he could be bossing
we could be bossing
you could be bossing
they could be bossing	I could have bossed
you could have bossed
he could have bossed
we could have bossed
you could have bossed
they could have bossed	I could have been bossing
you could have been bossing
he could have been bossing
we could have been bossing
you could have been bossing
they could have been bossing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't boss
you couldn't boss
he couldn't boss
we couldn't boss
you couldn't boss
they couldn't boss 	I couldn't be bossing
you couldn't be bossing
he couldn't be bossing
we couldn't be bossing
you couldn't be bossing
they couldn't be bossing	I couldn't have bossed
you couldn't have bossed
he couldn't have bossed
we couldn't have bossed
you couldn't have bossed
they couldn't have bossed	I couldn't have been bossing
you couldn't have been bossing
he couldn't have been bossing
we couldn't have been bossing
you couldn't have been bossing
they couldn't have been bossing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I boss?
could you boss?
could he boss?
could we boss?
could you boss?
could they boss? 	could I be bossing?
could you be bossing?
could he be bossing?
could we be bossing?
could you be bossing?
could they be bossing? 	could I have bossed?
could you have bossed?
could he have bossed?
could we have bossed?
could you have bossed?
could they have bossed? 	could I have been bossing?
could you have been bossing?
could he have been bossing?
could we have been bossing?
could you have been bossing?
could they have been bossing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I boss?
couldn't you boss?
couldn't he boss?
couldn't we boss?
couldn't you boss?
couldn't they boss? 	couldn't I be bossing?
couldn't you be bossing?
couldn't he be bossing?
couldn't we be bossing?
couldn't you be bossing?
couldn't they be bossing? 	couldn't I have bossed?
couldn't you have bossed?
couldn't he have bossed?
couldn't we have bossed?
couldn't you have bossed?
couldn't they have bossed? 	couldn't I have been bossing?
couldn't you have been bossing?
couldn't he have been bossing?
couldn't we have been bossing?
couldn't you have been bossing?
couldn't they have been bossing?