must subcool
Regular verb: subcool - subcooled- subcooled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must subcool
you must subcool
she must subcool
we must subcool
you must subcool
they must subcool 	I must be subcooling
you must be subcooling
she must be subcooling
we must be subcooling
you must be subcooling
they must be subcooling	I must have subcooled
you must have subcooled
she 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
she 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 mustn't subcool
you mustn't subcool
she mustn't subcool
we mustn't subcool
you mustn't subcool
they mustn't subcool 	I mustn't be subcooling
you mustn't be subcooling
she mustn't be subcooling
we mustn't be subcooling
you mustn't be subcooling
they mustn't be subcooling	I mustn't have subcooled
you mustn't have subcooled
she mustn't have subcooled
we mustn't have subcooled
you mustn't have subcooled
they mustn't have subcooled	I mustn't have been subcooling
you mustn't have been subcooling
she mustn't have been subcooling
we mustn't have been subcooling
you mustn't have been subcooling
they mustn't have been subcooling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I subcool?
must you subcool?
must she subcool?
must we subcool?
must you subcool?
must they subcool? 	must I be subcooling?
must you be subcooling?
must she be subcooling?
must we be subcooling?
must you be subcooling?
must they be subcooling? 	must I have subcooled?
must you have subcooled?
must she 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 she 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 	
mustn't I subcool?
mustn't you subcool?
mustn't she subcool?
mustn't we subcool?
mustn't you subcool?
mustn't they subcool? 	mustn't I be subcooling?
mustn't you be subcooling?
mustn't she be subcooling?
mustn't we be subcooling?
mustn't you be subcooling?
mustn't they be subcooling? 	mustn't I have subcooled?
mustn't you have subcooled?
mustn't she have subcooled?
mustn't we have subcooled?
mustn't you have subcooled?
mustn't they have subcooled? 	mustn't I have been subcooling?
mustn't you have been subcooling?
mustn't she have been subcooling?
mustn't we have been subcooling?
mustn't you have been subcooling?
mustn't they have been subcooling?