I must ping you must ping he must ping we must ping you must ping they must ping
Forma con V-ing
I must be pinging you must be pinging he must be pinging we must be pinging you must be pinging they must be pinging
Perfecto
I must have pinged you must have pinged he must have pinged we must have pinged you must have pinged they must have pinged
Perfecto con V-ing
I must have been pinging you must have been pinging he must have been pinging we must have been pinging you must have been pinging they must have been pinging
Negación
Forma simple
I must not ping you must not ping he must not ping we must not ping you must not ping they must not ping
Forma con V-ing
I must not be pinging you must not be pinging he must not be pinging we must not be pinging you must not be pinging they must not be pinging
Perfecto
I must not have pinged you must not have pinged he must not have pinged we must not have pinged you must not have pinged they must not have pinged
Perfecto con V-ing
I must not have been pinging you must not have been pinging he must not have been pinging we must not have been pinging you must not have been pinging they must not have been pinging
Forma interrogativa
Forma simple
must I ping? must you ping? must he ping? must we ping? must you ping? must they ping?
Forma con V-ing
must I be pinging? must you be pinging? must he be pinging? must we be pinging? must you be pinging? must they be pinging?
Perfecto
must I have pinged? must you have pinged? must he have pinged? must we have pinged? must you have pinged? must they have pinged?
Perfecto con V-ing
must I have been pinging? must you have been pinging? must he have been pinging? must we have been pinging? must you have been pinging? must they have been pinging?
Forma interro-negativa
Forma simple
must I not ping? must you not ping? must he not ping? must we not ping? must you not ping? must they not ping?
Forma con V-ing
must I not be pinging? must you not be pinging? must he not be pinging? must we not be pinging? must you not be pinging? must they not be pinging?
Perfecto
must I not have pinged? must you not have pinged? must he not have pinged? must we not have pinged? must you not have pinged? must they not have pinged?
Perfecto con V-ing
must I not have been pinging? must you not have been pinging? must he not have been pinging? must we not have been pinging? must you not have been pinging? must they not have been pinging?