could subordinate
Regular verb: subordinate - subordinated- subordinated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could subordinate
you could subordinate
she could subordinate
we could subordinate
you could subordinate
they could subordinate 	I could be subordinating
you could be subordinating
she could be subordinating
we could be subordinating
you could be subordinating
they could be subordinating	I could have subordinated
you could have subordinated
she could have subordinated
we could have subordinated
you could have subordinated
they could have subordinated	I could have been subordinating
you could have been subordinating
she could have been subordinating
we could have been subordinating
you could have been subordinating
they could have been subordinating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't subordinate
you couldn't subordinate
she couldn't subordinate
we couldn't subordinate
you couldn't subordinate
they couldn't subordinate 	I couldn't be subordinating
you couldn't be subordinating
she couldn't be subordinating
we couldn't be subordinating
you couldn't be subordinating
they couldn't be subordinating	I couldn't have subordinated
you couldn't have subordinated
she couldn't have subordinated
we couldn't have subordinated
you couldn't have subordinated
they couldn't have subordinated	I couldn't have been subordinating
you couldn't have been subordinating
she couldn't have been subordinating
we couldn't have been subordinating
you couldn't have been subordinating
they couldn't have been subordinating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I subordinate?
could you subordinate?
could she subordinate?
could we subordinate?
could you subordinate?
could they subordinate? 	could I be subordinating?
could you be subordinating?
could she be subordinating?
could we be subordinating?
could you be subordinating?
could they be subordinating? 	could I have subordinated?
could you have subordinated?
could she have subordinated?
could we have subordinated?
could you have subordinated?
could they have subordinated? 	could I have been subordinating?
could you have been subordinating?
could she have been subordinating?
could we have been subordinating?
could you have been subordinating?
could they have been subordinating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I subordinate?
couldn't you subordinate?
couldn't she subordinate?
couldn't we subordinate?
couldn't you subordinate?
couldn't they subordinate? 	couldn't I be subordinating?
couldn't you be subordinating?
couldn't she be subordinating?
couldn't we be subordinating?
couldn't you be subordinating?
couldn't they be subordinating? 	couldn't I have subordinated?
couldn't you have subordinated?
couldn't she have subordinated?
couldn't we have subordinated?
couldn't you have subordinated?
couldn't they have subordinated? 	couldn't I have been subordinating?
couldn't you have been subordinating?
couldn't she have been subordinating?
couldn't we have been subordinating?
couldn't you have been subordinating?
couldn't they have been subordinating?