could supercool
Regular verb: supercool - supercooled- supercooled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could supercool
you could supercool
she could supercool
we could supercool
you could supercool
they could supercool 	I could be supercooling
you could be supercooling
she could be supercooling
we could be supercooling
you could be supercooling
they could be supercooling	I could have supercooled
you could have supercooled
she could have supercooled
we could have supercooled
you could have supercooled
they could have supercooled	I could have been supercooling
you could have been supercooling
she could have been supercooling
we could have been supercooling
you could have been supercooling
they could have been supercooling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not supercool
you could not supercool
she could not supercool
we could not supercool
you could not supercool
they could not supercool 	I could not be supercooling
you could not be supercooling
she could not be supercooling
we could not be supercooling
you could not be supercooling
they could not be supercooling	I could not have supercooled
you could not have supercooled
she could not have supercooled
we could not have supercooled
you could not have supercooled
they could not have supercooled	I could not have been supercooling
you could not have been supercooling
she could not have been supercooling
we could not have been supercooling
you could not have been supercooling
they could not have been supercooling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I supercool?
could you supercool?
could she supercool?
could we supercool?
could you supercool?
could they supercool? 	could I be supercooling?
could you be supercooling?
could she be supercooling?
could we be supercooling?
could you be supercooling?
could they be supercooling? 	could I have supercooled?
could you have supercooled?
could she have supercooled?
could we have supercooled?
could you have supercooled?
could they have supercooled? 	could I have been supercooling?
could you have been supercooling?
could she have been supercooling?
could we have been supercooling?
could you have been supercooling?
could they have been supercooling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not supercool?
could you not supercool?
could she not supercool?
could we not supercool?
could you not supercool?
could they not supercool? 	could I not be supercooling?
could you not be supercooling?
could she not be supercooling?
could we not be supercooling?
could you not be supercooling?
could they not be supercooling? 	could I not have supercooled?
could you not have supercooled?
could she not have supercooled?
could we not have supercooled?
could you not have supercooled?
could they not have supercooled? 	could I not have been supercooling?
could you not have been supercooling?
could she not have been supercooling?
could we not have been supercooling?
could you not have been supercooling?
could they not have been supercooling?