could reoperate
Regular verb: reoperate - reoperated- reoperated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could reoperate
you could reoperate
he could reoperate
we could reoperate
you could reoperate
they could reoperate 	I could be reoperating
you could be reoperating
he could be reoperating
we could be reoperating
you could be reoperating
they could be reoperating	I could have reoperated
you could have reoperated
he could have reoperated
we could have reoperated
you could have reoperated
they could have reoperated	I could have been reoperating
you could have been reoperating
he could have been reoperating
we could have been reoperating
you could have been reoperating
they could have been reoperating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't reoperate
you couldn't reoperate
he couldn't reoperate
we couldn't reoperate
you couldn't reoperate
they couldn't reoperate 	I couldn't be reoperating
you couldn't be reoperating
he couldn't be reoperating
we couldn't be reoperating
you couldn't be reoperating
they couldn't be reoperating	I couldn't have reoperated
you couldn't have reoperated
he couldn't have reoperated
we couldn't have reoperated
you couldn't have reoperated
they couldn't have reoperated	I couldn't have been reoperating
you couldn't have been reoperating
he couldn't have been reoperating
we couldn't have been reoperating
you couldn't have been reoperating
they couldn't have been reoperating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I reoperate?
could you reoperate?
could he reoperate?
could we reoperate?
could you reoperate?
could they reoperate? 	could I be reoperating?
could you be reoperating?
could he be reoperating?
could we be reoperating?
could you be reoperating?
could they be reoperating? 	could I have reoperated?
could you have reoperated?
could he have reoperated?
could we have reoperated?
could you have reoperated?
could they have reoperated? 	could I have been reoperating?
could you have been reoperating?
could he have been reoperating?
could we have been reoperating?
could you have been reoperating?
could they have been reoperating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I reoperate?
couldn't you reoperate?
couldn't he reoperate?
couldn't we reoperate?
couldn't you reoperate?
couldn't they reoperate? 	couldn't I be reoperating?
couldn't you be reoperating?
couldn't he be reoperating?
couldn't we be reoperating?
couldn't you be reoperating?
couldn't they be reoperating? 	couldn't I have reoperated?
couldn't you have reoperated?
couldn't he have reoperated?
couldn't we have reoperated?
couldn't you have reoperated?
couldn't they have reoperated? 	couldn't I have been reoperating?
couldn't you have been reoperating?
couldn't he have been reoperating?
couldn't we have been reoperating?
couldn't you have been reoperating?
couldn't they have been reoperating?