Verbo regular: countersign - countersigned - countersigned
Afirmación
Forma simple
I must countersign you must countersign he must countersign we must countersign you must countersign they must countersign
Forma con V-ing
I must be countersigning you must be countersigning he must be countersigning we must be countersigning you must be countersigning they must be countersigning
Perfecto
I must have countersigned you must have countersigned he must have countersigned we must have countersigned you must have countersigned they must have countersigned
Perfecto con V-ing
I must have been countersigning you must have been countersigning he must have been countersigning we must have been countersigning you must have been countersigning they must have been countersigning
Negación
Forma simple
I mustn't countersign you mustn't countersign he mustn't countersign we mustn't countersign you mustn't countersign they mustn't countersign
Forma con V-ing
I mustn't be countersigning you mustn't be countersigning he mustn't be countersigning we mustn't be countersigning you mustn't be countersigning they mustn't be countersigning
Perfecto
I mustn't have countersigned you mustn't have countersigned he mustn't have countersigned we mustn't have countersigned you mustn't have countersigned they mustn't have countersigned
Perfecto con V-ing
I mustn't have been countersigning you mustn't have been countersigning he mustn't have been countersigning we mustn't have been countersigning you mustn't have been countersigning they mustn't have been countersigning
Forma interrogativa
Forma simple
must I countersign? must you countersign? must he countersign? must we countersign? must you countersign? must they countersign?
Forma con V-ing
must I be countersigning? must you be countersigning? must he be countersigning? must we be countersigning? must you be countersigning? must they be countersigning?
Perfecto
must I have countersigned? must you have countersigned? must he have countersigned? must we have countersigned? must you have countersigned? must they have countersigned?
Perfecto con V-ing
must I have been countersigning? must you have been countersigning? must he have been countersigning? must we have been countersigning? must you have been countersigning? must they have been countersigning?
Forma interro-negativa
Forma simple
mustn't I countersign? mustn't you countersign? mustn't he countersign? mustn't we countersign? mustn't you countersign? mustn't they countersign?
Forma con V-ing
mustn't I be countersigning? mustn't you be countersigning? mustn't he be countersigning? mustn't we be countersigning? mustn't you be countersigning? mustn't they be countersigning?
Perfecto
mustn't I have countersigned? mustn't you have countersigned? mustn't he have countersigned? mustn't we have countersigned? mustn't you have countersigned? mustn't they have countersigned?
Perfecto con V-ing
mustn't I have been countersigning? mustn't you have been countersigning? mustn't he have been countersigning? mustn't we have been countersigning? mustn't you have been countersigning? mustn't they have been countersigning?