Conjugación del verbo inglés
COULD LIFEGUARD

Verbo regular: lifeguard - lifeguarded - lifeguarded

Afirmación

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

Negación

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

Forma interrogativa

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

Forma interro-negativa

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