I must heat you must heat she must heat we must heat you must heat they must heat
Forma com V-ing
I must be heating you must be heating she must be heating we must be heating you must be heating they must be heating
Perfeito
I must have heated you must have heated she must have heated we must have heated you must have heated they must have heated
Perfeito com V-ing
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
Negação
Forma simple
I mustn't heat you mustn't heat she mustn't heat we mustn't heat you mustn't heat they mustn't heat
Forma com V-ing
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
Perfeito
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
Perfeito com V-ing
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 simple
must I heat? must you heat? must she heat? must we heat? must you heat? must they heat?
Forma com V-ing
must I be heating? must you be heating? must she be heating? must we be heating? must you be heating? must they be heating?
Perfeito
must I have heated? must you have heated? must she have heated? must we have heated? must you have heated? must they have heated?
Perfeito com V-ing
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-Negação
Forma simple
mustn't I heat? mustn't you heat? mustn't she heat? mustn't we heat? mustn't you heat? mustn't they heat?
Forma com V-ing
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?
Perfeito
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?
Perfeito com V-ing
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?