could subrogate
Regular verb: subrogate - subrogated- subrogated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could subrogate
you could subrogate
he could subrogate
we could subrogate
you could subrogate
they could subrogate 	I could be subrogating
you could be subrogating
he could be subrogating
we could be subrogating
you could be subrogating
they could be subrogating	I could have subrogated
you could have subrogated
he could have subrogated
we could have subrogated
you could have subrogated
they could have subrogated	I could have been subrogating
you could have been subrogating
he could have been subrogating
we could have been subrogating
you could have been subrogating
they could have been subrogating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not subrogate
you could not subrogate
he could not subrogate
we could not subrogate
you could not subrogate
they could not subrogate 	I could not be subrogating
you could not be subrogating
he could not be subrogating
we could not be subrogating
you could not be subrogating
they could not be subrogating	I could not have subrogated
you could not have subrogated
he could not have subrogated
we could not have subrogated
you could not have subrogated
they could not have subrogated	I could not have been subrogating
you could not have been subrogating
he could not have been subrogating
we could not have been subrogating
you could not have been subrogating
they could not have been subrogating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I subrogate?
could you subrogate?
could he subrogate?
could we subrogate?
could you subrogate?
could they subrogate? 	could I be subrogating?
could you be subrogating?
could he be subrogating?
could we be subrogating?
could you be subrogating?
could they be subrogating? 	could I have subrogated?
could you have subrogated?
could he have subrogated?
could we have subrogated?
could you have subrogated?
could they have subrogated? 	could I have been subrogating?
could you have been subrogating?
could he have been subrogating?
could we have been subrogating?
could you have been subrogating?
could they have been subrogating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not subrogate?
could you not subrogate?
could he not subrogate?
could we not subrogate?
could you not subrogate?
could they not subrogate? 	could I not be subrogating?
could you not be subrogating?
could he not be subrogating?
could we not be subrogating?
could you not be subrogating?
could they not be subrogating? 	could I not have subrogated?
could you not have subrogated?
could he not have subrogated?
could we not have subrogated?
could you not have subrogated?
could they not have subrogated? 	could I not have been subrogating?
could you not have been subrogating?
could he not have been subrogating?
could we not have been subrogating?
could you not have been subrogating?
could they not have been subrogating?