could kink
Regular verb: kink - kinked- kinked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could kink
you could kink
she could kink
we could kink
you could kink
they could kink 	I could be kinking
you could be kinking
she could be kinking
we could be kinking
you could be kinking
they could be kinking	I could have kinked
you could have kinked
she could have kinked
we could have kinked
you could have kinked
they could have kinked	I could have been kinking
you could have been kinking
she could have been kinking
we could have been kinking
you could have been kinking
they could have been kinking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not kink
you could not kink
she could not kink
we could not kink
you could not kink
they could not kink 	I could not be kinking
you could not be kinking
she could not be kinking
we could not be kinking
you could not be kinking
they could not be kinking	I could not have kinked
you could not have kinked
she could not have kinked
we could not have kinked
you could not have kinked
they could not have kinked	I could not have been kinking
you could not have been kinking
she could not have been kinking
we could not have been kinking
you could not have been kinking
they could not have been kinking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I kink?
could you kink?
could she kink?
could we kink?
could you kink?
could they kink? 	could I be kinking?
could you be kinking?
could she be kinking?
could we be kinking?
could you be kinking?
could they be kinking? 	could I have kinked?
could you have kinked?
could she have kinked?
could we have kinked?
could you have kinked?
could they have kinked? 	could I have been kinking?
could you have been kinking?
could she have been kinking?
could we have been kinking?
could you have been kinking?
could they have been kinking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not kink?
could you not kink?
could she not kink?
could we not kink?
could you not kink?
could they not kink? 	could I not be kinking?
could you not be kinking?
could she not be kinking?
could we not be kinking?
could you not be kinking?
could they not be kinking? 	could I not have kinked?
could you not have kinked?
could she not have kinked?
could we not have kinked?
could you not have kinked?
could they not have kinked? 	could I not have been kinking?
could you not have been kinking?
could she not have been kinking?
could we not have been kinking?
could you not have been kinking?
could they not have been kinking?