must prechill
Verbo regular: prechill - prechilled- prechilled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must prechill
you must prechill
she must prechill
we must prechill
you must prechill
they must prechill 	I must be prechilling
you must be prechilling
she must be prechilling
we must be prechilling
you must be prechilling
they must be prechilling	I must have prechilled
you must have prechilled
she must have prechilled
we must have prechilled
you must have prechilled
they must have prechilled	I must have been prechilling
you must have been prechilling
she must have been prechilling
we must have been prechilling
you must have been prechilling
they must have been prechilling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't prechill
you mustn't prechill
she mustn't prechill
we mustn't prechill
you mustn't prechill
they mustn't prechill 	I mustn't be prechilling
you mustn't be prechilling
she mustn't be prechilling
we mustn't be prechilling
you mustn't be prechilling
they mustn't be prechilling	I mustn't have prechilled
you mustn't have prechilled
she mustn't have prechilled
we mustn't have prechilled
you mustn't have prechilled
they mustn't have prechilled	I mustn't have been prechilling
you mustn't have been prechilling
she mustn't have been prechilling
we mustn't have been prechilling
you mustn't have been prechilling
they mustn't have been prechilling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I prechill?
must you prechill?
must she prechill?
must we prechill?
must you prechill?
must they prechill? 	must I be prechilling?
must you be prechilling?
must she be prechilling?
must we be prechilling?
must you be prechilling?
must they be prechilling? 	must I have prechilled?
must you have prechilled?
must she have prechilled?
must we have prechilled?
must you have prechilled?
must they have prechilled? 	must I have been prechilling?
must you have been prechilling?
must she have been prechilling?
must we have been prechilling?
must you have been prechilling?
must they have been prechilling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I prechill?
mustn't you prechill?
mustn't she prechill?
mustn't we prechill?
mustn't you prechill?
mustn't they prechill? 	mustn't I be prechilling?
mustn't you be prechilling?
mustn't she be prechilling?
mustn't we be prechilling?
mustn't you be prechilling?
mustn't they be prechilling? 	mustn't I have prechilled?
mustn't you have prechilled?
mustn't she have prechilled?
mustn't we have prechilled?
mustn't you have prechilled?
mustn't they have prechilled? 	mustn't I have been prechilling?
mustn't you have been prechilling?
mustn't she have been prechilling?
mustn't we have been prechilling?
mustn't you have been prechilling?
mustn't they have been prechilling?