I must fix you must fix she must fix we must fix you must fix they must fix
Forma con V-ing
I must be fixing you must be fixing she must be fixing we must be fixing you must be fixing they must be fixing
Perfecto
I must have fixed you must have fixed she must have fixed we must have fixed you must have fixed they must have fixed
Perfecto con V-ing
I must have been fixing you must have been fixing she must have been fixing we must have been fixing you must have been fixing they must have been fixing
Negación
Forma simple
I must not fix you must not fix she must not fix we must not fix you must not fix they must not fix
Forma con V-ing
I must not be fixing you must not be fixing she must not be fixing we must not be fixing you must not be fixing they must not be fixing
Perfecto
I must not have fixed you must not have fixed she must not have fixed we must not have fixed you must not have fixed they must not have fixed
Perfecto con V-ing
I must not have been fixing you must not have been fixing she must not have been fixing we must not have been fixing you must not have been fixing they must not have been fixing
Forma interrogativa
Forma simple
must I fix? must you fix? must she fix? must we fix? must you fix? must they fix?
Forma con V-ing
must I be fixing? must you be fixing? must she be fixing? must we be fixing? must you be fixing? must they be fixing?
Perfecto
must I have fixed? must you have fixed? must she have fixed? must we have fixed? must you have fixed? must they have fixed?
Perfecto con V-ing
must I have been fixing? must you have been fixing? must she have been fixing? must we have been fixing? must you have been fixing? must they have been fixing?
Forma interro-negativa
Forma simple
must I not fix? must you not fix? must she not fix? must we not fix? must you not fix? must they not fix?
Forma con V-ing
must I not be fixing? must you not be fixing? must she not be fixing? must we not be fixing? must you not be fixing? must they not be fixing?
Perfecto
must I not have fixed? must you not have fixed? must she not have fixed? must we not have fixed? must you not have fixed? must they not have fixed?
Perfecto con V-ing
must I not have been fixing? must you not have been fixing? must she not have been fixing? must we not have been fixing? must you not have been fixing? must they not have been fixing?