I must shrill you must shrill she must shrill we must shrill you must shrill they must shrill
Forma con V-ing
I must be shrilling you must be shrilling she must be shrilling we must be shrilling you must be shrilling they must be shrilling
Perfecto
I must have shrilled you must have shrilled she must have shrilled we must have shrilled you must have shrilled they must have shrilled
Perfecto con V-ing
I must have been shrilling you must have been shrilling she must have been shrilling we must have been shrilling you must have been shrilling they must have been shrilling
Negación
Forma simple
I must not shrill you must not shrill she must not shrill we must not shrill you must not shrill they must not shrill
Forma con V-ing
I must not be shrilling you must not be shrilling she must not be shrilling we must not be shrilling you must not be shrilling they must not be shrilling
Perfecto
I must not have shrilled you must not have shrilled she must not have shrilled we must not have shrilled you must not have shrilled they must not have shrilled
Perfecto con V-ing
I must not have been shrilling you must not have been shrilling she must not have been shrilling we must not have been shrilling you must not have been shrilling they must not have been shrilling
Forma interrogativa
Forma simple
must I shrill? must you shrill? must she shrill? must we shrill? must you shrill? must they shrill?
Forma con V-ing
must I be shrilling? must you be shrilling? must she be shrilling? must we be shrilling? must you be shrilling? must they be shrilling?
Perfecto
must I have shrilled? must you have shrilled? must she have shrilled? must we have shrilled? must you have shrilled? must they have shrilled?
Perfecto con V-ing
must I have been shrilling? must you have been shrilling? must she have been shrilling? must we have been shrilling? must you have been shrilling? must they have been shrilling?
Forma interro-negativa
Forma simple
must I not shrill? must you not shrill? must she not shrill? must we not shrill? must you not shrill? must they not shrill?
Forma con V-ing
must I not be shrilling? must you not be shrilling? must she not be shrilling? must we not be shrilling? must you not be shrilling? must they not be shrilling?
Perfecto
must I not have shrilled? must you not have shrilled? must she not have shrilled? must we not have shrilled? must you not have shrilled? must they not have shrilled?
Perfecto con V-ing
must I not have been shrilling? must you not have been shrilling? must she not have been shrilling? must we not have been shrilling? must you not have been shrilling? must they not have been shrilling?