must heat
Verbo regolare: heat - heated- heated

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must heat
you must heat
she must heat
we must heat
you must heat
they must heat 	I must be heating
you must be heating
she must be heating
we must be heating
you must be heating
they must be heating	I must have heated
you must have heated
she must have heated
we must have heated
you must have heated
they must have heated	I must have been heating
you must have been heating
she must have been heating
we must have been heating
you must have been heating
they must have been heating	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I mustn't heat
you mustn't heat
she mustn't heat
we mustn't heat
you mustn't heat
they mustn't heat 	I mustn't be heating
you mustn't be heating
she mustn't be heating
we mustn't be heating
you mustn't be heating
they mustn't be heating	I mustn't have heated
you mustn't have heated
she mustn't have heated
we mustn't have heated
you mustn't have heated
they mustn't have heated	I mustn't have been heating
you mustn't have been heating
she mustn't have been heating
we mustn't have been heating
you mustn't have been heating
they mustn't have been heating	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I heat?
must you heat?
must she heat?
must we heat?
must you heat?
must they heat? 	must I be heating?
must you be heating?
must she be heating?
must we be heating?
must you be heating?
must they be heating? 	must I have heated?
must you have heated?
must she have heated?
must we have heated?
must you have heated?
must they have heated? 	must I have been heating?
must you have been heating?
must she have been heating?
must we have been heating?
must you have been heating?
must they have been heating? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
mustn't I heat?
mustn't you heat?
mustn't she heat?
mustn't we heat?
mustn't you heat?
mustn't they heat? 	mustn't I be heating?
mustn't you be heating?
mustn't she be heating?
mustn't we be heating?
mustn't you be heating?
mustn't they be heating? 	mustn't I have heated?
mustn't you have heated?
mustn't she have heated?
mustn't we have heated?
mustn't you have heated?
mustn't they have heated? 	mustn't I have been heating?
mustn't you have been heating?
mustn't she have been heating?
mustn't we have been heating?
mustn't you have been heating?
mustn't they have been heating?