I must sneer you must sneer she must sneer we must sneer you must sneer they must sneer
Forma con V-ing
I must be sneering you must be sneering she must be sneering we must be sneering you must be sneering they must be sneering
Perfecto
I must have sneered you must have sneered she must have sneered we must have sneered you must have sneered they must have sneered
Perfecto con V-ing
I must have been sneering you must have been sneering she must have been sneering we must have been sneering you must have been sneering they must have been sneering
Negación
Forma simple
I must not sneer you must not sneer she must not sneer we must not sneer you must not sneer they must not sneer
Forma con V-ing
I must not be sneering you must not be sneering she must not be sneering we must not be sneering you must not be sneering they must not be sneering
Perfecto
I must not have sneered you must not have sneered she must not have sneered we must not have sneered you must not have sneered they must not have sneered
Perfecto con V-ing
I must not have been sneering you must not have been sneering she must not have been sneering we must not have been sneering you must not have been sneering they must not have been sneering
Forma interrogativa
Forma simple
must I sneer? must you sneer? must she sneer? must we sneer? must you sneer? must they sneer?
Forma con V-ing
must I be sneering? must you be sneering? must she be sneering? must we be sneering? must you be sneering? must they be sneering?
Perfecto
must I have sneered? must you have sneered? must she have sneered? must we have sneered? must you have sneered? must they have sneered?
Perfecto con V-ing
must I have been sneering? must you have been sneering? must she have been sneering? must we have been sneering? must you have been sneering? must they have been sneering?
Forma interro-negativa
Forma simple
must I not sneer? must you not sneer? must she not sneer? must we not sneer? must you not sneer? must they not sneer?
Forma con V-ing
must I not be sneering? must you not be sneering? must she not be sneering? must we not be sneering? must you not be sneering? must they not be sneering?
Perfecto
must I not have sneered? must you not have sneered? must she not have sneered? must we not have sneered? must you not have sneered? must they not have sneered?
Perfecto con V-ing
must I not have been sneering? must you not have been sneering? must she not have been sneering? must we not have been sneering? must you not have been sneering? must they not have been sneering?