I must quiver you must quiver she must quiver we must quiver you must quiver they must quiver
Forma con V-ing
I must be quivering you must be quivering she must be quivering we must be quivering you must be quivering they must be quivering
Perfetto
I must have quivered you must have quivered she must have quivered we must have quivered you must have quivered they must have quivered
Perfetto con V-ing
I must have been quivering you must have been quivering she must have been quivering we must have been quivering you must have been quivering they must have been quivering
Negazione
Forma semplice
I mustn't quiver you mustn't quiver she mustn't quiver we mustn't quiver you mustn't quiver they mustn't quiver
Forma con V-ing
I mustn't be quivering you mustn't be quivering she mustn't be quivering we mustn't be quivering you mustn't be quivering they mustn't be quivering
Perfetto
I mustn't have quivered you mustn't have quivered she mustn't have quivered we mustn't have quivered you mustn't have quivered they mustn't have quivered
Perfetto con V-ing
I mustn't have been quivering you mustn't have been quivering she mustn't have been quivering we mustn't have been quivering you mustn't have been quivering they mustn't have been quivering
Forma interrogativa
Forma semplice
must I quiver? must you quiver? must she quiver? must we quiver? must you quiver? must they quiver?
Forma con V-ing
must I be quivering? must you be quivering? must she be quivering? must we be quivering? must you be quivering? must they be quivering?
Perfetto
must I have quivered? must you have quivered? must she have quivered? must we have quivered? must you have quivered? must they have quivered?
Perfetto con V-ing
must I have been quivering? must you have been quivering? must she have been quivering? must we have been quivering? must you have been quivering? must they have been quivering?
Forma interro-negativa
Forma semplice
mustn't I quiver? mustn't you quiver? mustn't she quiver? mustn't we quiver? mustn't you quiver? mustn't they quiver?
Forma con V-ing
mustn't I be quivering? mustn't you be quivering? mustn't she be quivering? mustn't we be quivering? mustn't you be quivering? mustn't they be quivering?
Perfetto
mustn't I have quivered? mustn't you have quivered? mustn't she have quivered? mustn't we have quivered? mustn't you have quivered? mustn't they have quivered?
Perfetto con V-ing
mustn't I have been quivering? mustn't you have been quivering? mustn't she have been quivering? mustn't we have been quivering? mustn't you have been quivering? mustn't they have been quivering?