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