can lifeguard
Verbo regular: lifeguard - lifeguarded- lifeguarded

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can lifeguard
you can lifeguard
he can lifeguard
we can lifeguard
you can lifeguard
they can lifeguard 	I can be lifeguarding
you can be lifeguarding
he can be lifeguarding
we can be lifeguarding
you can be lifeguarding
they can be lifeguarding	I can have lifeguarded
you can have lifeguarded
he can have lifeguarded
we can have lifeguarded
you can have lifeguarded
they can have lifeguarded	I can have been lifeguarding
you can have been lifeguarding
he can have been lifeguarding
we can have been lifeguarding
you can have been lifeguarding
they can have been lifeguarding	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot lifeguard
you cannot lifeguard
he cannot lifeguard
we cannot lifeguard
you cannot lifeguard
they cannot lifeguard 	I cannot be lifeguarding
you cannot be lifeguarding
he cannot be lifeguarding
we cannot be lifeguarding
you cannot be lifeguarding
they cannot be lifeguarding	I cannot have lifeguarded
you cannot have lifeguarded
he cannot have lifeguarded
we cannot have lifeguarded
you cannot have lifeguarded
they cannot have lifeguarded	I cannot have been lifeguarding
you cannot have been lifeguarding
he cannot have been lifeguarding
we cannot have been lifeguarding
you cannot have been lifeguarding
they cannot have been lifeguarding	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I lifeguard?
can you lifeguard?
can he lifeguard?
can we lifeguard?
can you lifeguard?
can they lifeguard? 	can I be lifeguarding?
can you be lifeguarding?
can he be lifeguarding?
can we be lifeguarding?
can you be lifeguarding?
can they be lifeguarding? 	can I have lifeguarded?
can you have lifeguarded?
can he have lifeguarded?
can we have lifeguarded?
can you have lifeguarded?
can they have lifeguarded? 	can I have been lifeguarding?
can you have been lifeguarding?
can he have been lifeguarding?
can we have been lifeguarding?
can you have been lifeguarding?
can they have been lifeguarding? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not lifeguard?
can you not lifeguard?
can he not lifeguard?
can we not lifeguard?
can you not lifeguard?
can they not lifeguard? 	can I not be lifeguarding?
can you not be lifeguarding?
can he not be lifeguarding?
can we not be lifeguarding?
can you not be lifeguarding?
can they not be lifeguarding? 	can I not have lifeguarded?
can you not have lifeguarded?
can he not have lifeguarded?
can we not have lifeguarded?
can you not have lifeguarded?
can they not have lifeguarded? 	can I not have been lifeguarding?
can you not have been lifeguarding?
can he not have been lifeguarding?
can we not have been lifeguarding?
can you not have been lifeguarding?
can they not have been lifeguarding?