I must muscle you must muscle he must muscle we must muscle you must muscle they must muscle
Forma con V-ing
I must be muscling you must be muscling he must be muscling we must be muscling you must be muscling they must be muscling
Perfecto
I must have muscled you must have muscled he must have muscled we must have muscled you must have muscled they must have muscled
Perfecto con V-ing
I must have been muscling you must have been muscling he must have been muscling we must have been muscling you must have been muscling they must have been muscling
Negación
Forma simple
I mustn't muscle you mustn't muscle he mustn't muscle we mustn't muscle you mustn't muscle they mustn't muscle
Forma con V-ing
I mustn't be muscling you mustn't be muscling he mustn't be muscling we mustn't be muscling you mustn't be muscling they mustn't be muscling
Perfecto
I mustn't have muscled you mustn't have muscled he mustn't have muscled we mustn't have muscled you mustn't have muscled they mustn't have muscled
Perfecto con V-ing
I mustn't have been muscling you mustn't have been muscling he mustn't have been muscling we mustn't have been muscling you mustn't have been muscling they mustn't have been muscling
Forma interrogativa
Forma simple
must I muscle? must you muscle? must he muscle? must we muscle? must you muscle? must they muscle?
Forma con V-ing
must I be muscling? must you be muscling? must he be muscling? must we be muscling? must you be muscling? must they be muscling?
Perfecto
must I have muscled? must you have muscled? must he have muscled? must we have muscled? must you have muscled? must they have muscled?
Perfecto con V-ing
must I have been muscling? must you have been muscling? must he have been muscling? must we have been muscling? must you have been muscling? must they have been muscling?
Forma interro-negativa
Forma simple
mustn't I muscle? mustn't you muscle? mustn't he muscle? mustn't we muscle? mustn't you muscle? mustn't they muscle?
Forma con V-ing
mustn't I be muscling? mustn't you be muscling? mustn't he be muscling? mustn't we be muscling? mustn't you be muscling? mustn't they be muscling?
Perfecto
mustn't I have muscled? mustn't you have muscled? mustn't he have muscled? mustn't we have muscled? mustn't you have muscled? mustn't they have muscled?
Perfecto con V-ing
mustn't I have been muscling? mustn't you have been muscling? mustn't he have been muscling? mustn't we have been muscling? mustn't you have been muscling? mustn't they have been muscling?