must subcool
Regular verb: subcool - subcooled- subcooled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must subcool
you must subcool
he must subcool
we must subcool
you must subcool
they must subcool 	I must be subcooling
you must be subcooling
he must be subcooling
we must be subcooling
you must be subcooling
they must be subcooling	I must have subcooled
you must have subcooled
he must have subcooled
we must have subcooled
you must have subcooled
they must have subcooled	I must have been subcooling
you must have been subcooling
he must have been subcooling
we must have been subcooling
you must have been subcooling
they must have been subcooling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not subcool
you must not subcool
he must not subcool
we must not subcool
you must not subcool
they must not subcool 	I must not be subcooling
you must not be subcooling
he must not be subcooling
we must not be subcooling
you must not be subcooling
they must not be subcooling	I must not have subcooled
you must not have subcooled
he must not have subcooled
we must not have subcooled
you must not have subcooled
they must not have subcooled	I must not have been subcooling
you must not have been subcooling
he must not have been subcooling
we must not have been subcooling
you must not have been subcooling
they must not have been subcooling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I subcool?
must you subcool?
must he subcool?
must we subcool?
must you subcool?
must they subcool? 	must I be subcooling?
must you be subcooling?
must he be subcooling?
must we be subcooling?
must you be subcooling?
must they be subcooling? 	must I have subcooled?
must you have subcooled?
must he have subcooled?
must we have subcooled?
must you have subcooled?
must they have subcooled? 	must I have been subcooling?
must you have been subcooling?
must he have been subcooling?
must we have been subcooling?
must you have been subcooling?
must they have been subcooling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not subcool?
must you not subcool?
must he not subcool?
must we not subcool?
must you not subcool?
must they not subcool? 	must I not be subcooling?
must you not be subcooling?
must he not be subcooling?
must we not be subcooling?
must you not be subcooling?
must they not be subcooling? 	must I not have subcooled?
must you not have subcooled?
must he not have subcooled?
must we not have subcooled?
must you not have subcooled?
must they not have subcooled? 	must I not have been subcooling?
must you not have been subcooling?
must he not have been subcooling?
must we not have been subcooling?
must you not have been subcooling?
must they not have been subcooling?