could autopsy
Regular verb: autopsy - autopsied- autopsied

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could autopsy
you could autopsy
she could autopsy
we could autopsy
you could autopsy
they could autopsy 	I could be autopsying
you could be autopsying
she could be autopsying
we could be autopsying
you could be autopsying
they could be autopsying	I could have autopsied
you could have autopsied
she could have autopsied
we could have autopsied
you could have autopsied
they could have autopsied	I could have been autopsying
you could have been autopsying
she could have been autopsying
we could have been autopsying
you could have been autopsying
they could have been autopsying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't autopsy
you couldn't autopsy
she couldn't autopsy
we couldn't autopsy
you couldn't autopsy
they couldn't autopsy 	I couldn't be autopsying
you couldn't be autopsying
she couldn't be autopsying
we couldn't be autopsying
you couldn't be autopsying
they couldn't be autopsying	I couldn't have autopsied
you couldn't have autopsied
she couldn't have autopsied
we couldn't have autopsied
you couldn't have autopsied
they couldn't have autopsied	I couldn't have been autopsying
you couldn't have been autopsying
she couldn't have been autopsying
we couldn't have been autopsying
you couldn't have been autopsying
they couldn't have been autopsying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I autopsy?
could you autopsy?
could she autopsy?
could we autopsy?
could you autopsy?
could they autopsy? 	could I be autopsying?
could you be autopsying?
could she be autopsying?
could we be autopsying?
could you be autopsying?
could they be autopsying? 	could I have autopsied?
could you have autopsied?
could she have autopsied?
could we have autopsied?
could you have autopsied?
could they have autopsied? 	could I have been autopsying?
could you have been autopsying?
could she have been autopsying?
could we have been autopsying?
could you have been autopsying?
could they have been autopsying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I autopsy?
couldn't you autopsy?
couldn't she autopsy?
couldn't we autopsy?
couldn't you autopsy?
couldn't they autopsy? 	couldn't I be autopsying?
couldn't you be autopsying?
couldn't she be autopsying?
couldn't we be autopsying?
couldn't you be autopsying?
couldn't they be autopsying? 	couldn't I have autopsied?
couldn't you have autopsied?
couldn't she have autopsied?
couldn't we have autopsied?
couldn't you have autopsied?
couldn't they have autopsied? 	couldn't I have been autopsying?
couldn't you have been autopsying?
couldn't she have been autopsying?
couldn't we have been autopsying?
couldn't you have been autopsying?
couldn't they have been autopsying?