could grunt
Verbo regular: grunt - grunted- grunted

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could grunt
you could grunt
he could grunt
we could grunt
you could grunt
they could grunt 	I could be grunting
you could be grunting
he could be grunting
we could be grunting
you could be grunting
they could be grunting	I could have grunted
you could have grunted
he could have grunted
we could have grunted
you could have grunted
they could have grunted	I could have been grunting
you could have been grunting
he could have been grunting
we could have been grunting
you could have been grunting
they could have been grunting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not grunt
you could not grunt
he could not grunt
we could not grunt
you could not grunt
they could not grunt 	I could not be grunting
you could not be grunting
he could not be grunting
we could not be grunting
you could not be grunting
they could not be grunting	I could not have grunted
you could not have grunted
he could not have grunted
we could not have grunted
you could not have grunted
they could not have grunted	I could not have been grunting
you could not have been grunting
he could not have been grunting
we could not have been grunting
you could not have been grunting
they could not have been grunting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I grunt?
could you grunt?
could he grunt?
could we grunt?
could you grunt?
could they grunt? 	could I be grunting?
could you be grunting?
could he be grunting?
could we be grunting?
could you be grunting?
could they be grunting? 	could I have grunted?
could you have grunted?
could he have grunted?
could we have grunted?
could you have grunted?
could they have grunted? 	could I have been grunting?
could you have been grunting?
could he have been grunting?
could we have been grunting?
could you have been grunting?
could they have been grunting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not grunt?
could you not grunt?
could he not grunt?
could we not grunt?
could you not grunt?
could they not grunt? 	could I not be grunting?
could you not be grunting?
could he not be grunting?
could we not be grunting?
could you not be grunting?
could they not be grunting? 	could I not have grunted?
could you not have grunted?
could he not have grunted?
could we not have grunted?
could you not have grunted?
could they not have grunted? 	could I not have been grunting?
could you not have been grunting?
could he not have been grunting?
could we not have been grunting?
could you not have been grunting?
could they not have been grunting?