Conjugación del verbo inglés
MUST SERVICE

Verbo regular: service - serviced - serviced

Afirmación

Forma simple	Forma con V-ing
I must service you must service he must service we must service you must service they must service	I must be servicing you must be servicing he must be servicing we must be servicing you must be servicing they must be servicing
Perfecto	Perfecto con V-ing
I must have serviced you must have serviced he must have serviced we must have serviced you must have serviced they must have serviced	I must have been servicing you must have been servicing he must have been servicing we must have been servicing you must have been servicing they must have been servicing

Negación

Forma simple	Forma con V-ing
I must not service you must not service he must not service we must not service you must not service they must not service	I must not be servicing you must not be servicing he must not be servicing we must not be servicing you must not be servicing they must not be servicing
Perfecto	Perfecto con V-ing
I must not have serviced you must not have serviced he must not have serviced we must not have serviced you must not have serviced they must not have serviced	I must not have been servicing you must not have been servicing he must not have been servicing we must not have been servicing you must not have been servicing they must not have been servicing

Forma interrogativa

Forma simple	Forma con V-ing
must I service? must you service? must he service? must we service? must you service? must they service?	must I be servicing? must you be servicing? must he be servicing? must we be servicing? must you be servicing? must they be servicing?
Perfecto	Perfecto con V-ing
must I have serviced? must you have serviced? must he have serviced? must we have serviced? must you have serviced? must they have serviced?	must I have been servicing? must you have been servicing? must he have been servicing? must we have been servicing? must you have been servicing? must they have been servicing?

Forma interro-negativa

Forma simple	Forma con V-ing
must I not service? must you not service? must he not service? must we not service? must you not service? must they not service?	must I not be servicing? must you not be servicing? must he not be servicing? must we not be servicing? must you not be servicing? must they not be servicing?
Perfecto	Perfecto con V-ing
must I not have serviced? must you not have serviced? must he not have serviced? must we not have serviced? must you not have serviced? must they not have serviced?	must I not have been servicing? must you not have been servicing? must he not have been servicing? must we not have been servicing? must you not have been servicing? must they not have been servicing?