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