Conjugación del verbo inglés
MUST LIFEGUARD

Verbo regular: lifeguard - lifeguarded - lifeguarded

Afirmación

Forma simple	Forma con V-ing
I must lifeguard you must lifeguard he must lifeguard we must lifeguard you must lifeguard they must lifeguard	I must be lifeguarding you must be lifeguarding he must be lifeguarding we must be lifeguarding you must be lifeguarding they must be lifeguarding
Perfecto	Perfecto con V-ing
I must have lifeguarded you must have lifeguarded he must have lifeguarded we must have lifeguarded you must have lifeguarded they must have lifeguarded	I must have been lifeguarding you must have been lifeguarding he must have been lifeguarding we must have been lifeguarding you must have been lifeguarding they must have been lifeguarding

Negación

Forma simple	Forma con V-ing
I must not lifeguard you must not lifeguard he must not lifeguard we must not lifeguard you must not lifeguard they must not lifeguard	I must not be lifeguarding you must not be lifeguarding he must not be lifeguarding we must not be lifeguarding you must not be lifeguarding they must not be lifeguarding
Perfecto	Perfecto con V-ing
I must not have lifeguarded you must not have lifeguarded he must not have lifeguarded we must not have lifeguarded you must not have lifeguarded they must not have lifeguarded	I must not have been lifeguarding you must not have been lifeguarding he must not have been lifeguarding we must not have been lifeguarding you must not have been lifeguarding they must not have been lifeguarding

Forma interrogativa

Forma simple	Forma con V-ing
must I lifeguard? must you lifeguard? must he lifeguard? must we lifeguard? must you lifeguard? must they lifeguard?	must I be lifeguarding? must you be lifeguarding? must he be lifeguarding? must we be lifeguarding? must you be lifeguarding? must they be lifeguarding?
Perfecto	Perfecto con V-ing
must I have lifeguarded? must you have lifeguarded? must he have lifeguarded? must we have lifeguarded? must you have lifeguarded? must they have lifeguarded?	must I have been lifeguarding? must you have been lifeguarding? must he have been lifeguarding? must we have been lifeguarding? must you have been lifeguarding? must they have been lifeguarding?

Forma interro-negativa

Forma simple	Forma con V-ing
must I not lifeguard? must you not lifeguard? must he not lifeguard? must we not lifeguard? must you not lifeguard? must they not lifeguard?	must I not be lifeguarding? must you not be lifeguarding? must he not be lifeguarding? must we not be lifeguarding? must you not be lifeguarding? must they not be lifeguarding?
Perfecto	Perfecto con V-ing
must I not have lifeguarded? must you not have lifeguarded? must he not have lifeguarded? must we not have lifeguarded? must you not have lifeguarded? must they not have lifeguarded?	must I not have been lifeguarding? must you not have been lifeguarding? must he not have been lifeguarding? must we not have been lifeguarding? must you not have been lifeguarding? must they not have been lifeguarding?