I must foam you must foam she must foam we must foam you must foam they must foam
Forma con V-ing
I must be foaming you must be foaming she must be foaming we must be foaming you must be foaming they must be foaming
Perfecto
I must have foamed you must have foamed she must have foamed we must have foamed you must have foamed they must have foamed
Perfecto con V-ing
I must have been foaming you must have been foaming she must have been foaming we must have been foaming you must have been foaming they must have been foaming
Negación
Forma simple
I must not foam you must not foam she must not foam we must not foam you must not foam they must not foam
Forma con V-ing
I must not be foaming you must not be foaming she must not be foaming we must not be foaming you must not be foaming they must not be foaming
Perfecto
I must not have foamed you must not have foamed she must not have foamed we must not have foamed you must not have foamed they must not have foamed
Perfecto con V-ing
I must not have been foaming you must not have been foaming she must not have been foaming we must not have been foaming you must not have been foaming they must not have been foaming
Forma interrogativa
Forma simple
must I foam? must you foam? must she foam? must we foam? must you foam? must they foam?
Forma con V-ing
must I be foaming? must you be foaming? must she be foaming? must we be foaming? must you be foaming? must they be foaming?
Perfecto
must I have foamed? must you have foamed? must she have foamed? must we have foamed? must you have foamed? must they have foamed?
Perfecto con V-ing
must I have been foaming? must you have been foaming? must she have been foaming? must we have been foaming? must you have been foaming? must they have been foaming?
Forma interro-negativa
Forma simple
must I not foam? must you not foam? must she not foam? must we not foam? must you not foam? must they not foam?
Forma con V-ing
must I not be foaming? must you not be foaming? must she not be foaming? must we not be foaming? must you not be foaming? must they not be foaming?
Perfecto
must I not have foamed? must you not have foamed? must she not have foamed? must we not have foamed? must you not have foamed? must they not have foamed?
Perfecto con V-ing
must I not have been foaming? must you not have been foaming? must she not have been foaming? must we not have been foaming? must you not have been foaming? must they not have been foaming?