I must spruce you must spruce she must spruce we must spruce you must spruce they must spruce
Forma con V-ing
I must be sprucing you must be sprucing she must be sprucing we must be sprucing you must be sprucing they must be sprucing
Perfecto
I must have spruced you must have spruced she must have spruced we must have spruced you must have spruced they must have spruced
Perfecto con V-ing
I must have been sprucing you must have been sprucing she must have been sprucing we must have been sprucing you must have been sprucing they must have been sprucing
Negación
Forma simple
I mustn't spruce you mustn't spruce she mustn't spruce we mustn't spruce you mustn't spruce they mustn't spruce
Forma con V-ing
I mustn't be sprucing you mustn't be sprucing she mustn't be sprucing we mustn't be sprucing you mustn't be sprucing they mustn't be sprucing
Perfecto
I mustn't have spruced you mustn't have spruced she mustn't have spruced we mustn't have spruced you mustn't have spruced they mustn't have spruced
Perfecto con V-ing
I mustn't have been sprucing you mustn't have been sprucing she mustn't have been sprucing we mustn't have been sprucing you mustn't have been sprucing they mustn't have been sprucing
Forma interrogativa
Forma simple
must I spruce? must you spruce? must she spruce? must we spruce? must you spruce? must they spruce?
Forma con V-ing
must I be sprucing? must you be sprucing? must she be sprucing? must we be sprucing? must you be sprucing? must they be sprucing?
Perfecto
must I have spruced? must you have spruced? must she have spruced? must we have spruced? must you have spruced? must they have spruced?
Perfecto con V-ing
must I have been sprucing? must you have been sprucing? must she have been sprucing? must we have been sprucing? must you have been sprucing? must they have been sprucing?
Forma interro-negativa
Forma simple
mustn't I spruce? mustn't you spruce? mustn't she spruce? mustn't we spruce? mustn't you spruce? mustn't they spruce?
Forma con V-ing
mustn't I be sprucing? mustn't you be sprucing? mustn't she be sprucing? mustn't we be sprucing? mustn't you be sprucing? mustn't they be sprucing?
Perfecto
mustn't I have spruced? mustn't you have spruced? mustn't she have spruced? mustn't we have spruced? mustn't you have spruced? mustn't they have spruced?
Perfecto con V-ing
mustn't I have been sprucing? mustn't you have been sprucing? mustn't she have been sprucing? mustn't we have been sprucing? mustn't you have been sprucing? mustn't they have been sprucing?