could uncouple
Regular verb: uncouple - uncoupled- uncoupled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could uncouple
you could uncouple
she could uncouple
we could uncouple
you could uncouple
they could uncouple 	I could be uncoupling
you could be uncoupling
she could be uncoupling
we could be uncoupling
you could be uncoupling
they could be uncoupling	I could have uncoupled
you could have uncoupled
she could have uncoupled
we could have uncoupled
you could have uncoupled
they could have uncoupled	I could have been uncoupling
you could have been uncoupling
she could have been uncoupling
we could have been uncoupling
you could have been uncoupling
they could have been uncoupling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not uncouple
you could not uncouple
she could not uncouple
we could not uncouple
you could not uncouple
they could not uncouple 	I could not be uncoupling
you could not be uncoupling
she could not be uncoupling
we could not be uncoupling
you could not be uncoupling
they could not be uncoupling	I could not have uncoupled
you could not have uncoupled
she could not have uncoupled
we could not have uncoupled
you could not have uncoupled
they could not have uncoupled	I could not have been uncoupling
you could not have been uncoupling
she could not have been uncoupling
we could not have been uncoupling
you could not have been uncoupling
they could not have been uncoupling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I uncouple?
could you uncouple?
could she uncouple?
could we uncouple?
could you uncouple?
could they uncouple? 	could I be uncoupling?
could you be uncoupling?
could she be uncoupling?
could we be uncoupling?
could you be uncoupling?
could they be uncoupling? 	could I have uncoupled?
could you have uncoupled?
could she have uncoupled?
could we have uncoupled?
could you have uncoupled?
could they have uncoupled? 	could I have been uncoupling?
could you have been uncoupling?
could she have been uncoupling?
could we have been uncoupling?
could you have been uncoupling?
could they have been uncoupling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not uncouple?
could you not uncouple?
could she not uncouple?
could we not uncouple?
could you not uncouple?
could they not uncouple? 	could I not be uncoupling?
could you not be uncoupling?
could she not be uncoupling?
could we not be uncoupling?
could you not be uncoupling?
could they not be uncoupling? 	could I not have uncoupled?
could you not have uncoupled?
could she not have uncoupled?
could we not have uncoupled?
could you not have uncoupled?
could they not have uncoupled? 	could I not have been uncoupling?
could you not have been uncoupling?
could she not have been uncoupling?
could we not have been uncoupling?
could you not have been uncoupling?
could they not have been uncoupling?