could huff
Verbo regular: huff - huffed- huffed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could huff
you could huff
she could huff
we could huff
you could huff
they could huff 	I could be huffing
you could be huffing
she could be huffing
we could be huffing
you could be huffing
they could be huffing	I could have huffed
you could have huffed
she could have huffed
we could have huffed
you could have huffed
they could have huffed	I could have been huffing
you could have been huffing
she could have been huffing
we could have been huffing
you could have been huffing
they could have been huffing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not huff
you could not huff
she could not huff
we could not huff
you could not huff
they could not huff 	I could not be huffing
you could not be huffing
she could not be huffing
we could not be huffing
you could not be huffing
they could not be huffing	I could not have huffed
you could not have huffed
she could not have huffed
we could not have huffed
you could not have huffed
they could not have huffed	I could not have been huffing
you could not have been huffing
she could not have been huffing
we could not have been huffing
you could not have been huffing
they could not have been huffing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I huff?
could you huff?
could she huff?
could we huff?
could you huff?
could they huff? 	could I be huffing?
could you be huffing?
could she be huffing?
could we be huffing?
could you be huffing?
could they be huffing? 	could I have huffed?
could you have huffed?
could she have huffed?
could we have huffed?
could you have huffed?
could they have huffed? 	could I have been huffing?
could you have been huffing?
could she have been huffing?
could we have been huffing?
could you have been huffing?
could they have been huffing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not huff?
could you not huff?
could she not huff?
could we not huff?
could you not huff?
could they not huff? 	could I not be huffing?
could you not be huffing?
could she not be huffing?
could we not be huffing?
could you not be huffing?
could they not be huffing? 	could I not have huffed?
could you not have huffed?
could she not have huffed?
could we not have huffed?
could you not have huffed?
could they not have huffed? 	could I not have been huffing?
could you not have been huffing?
could she not have been huffing?
could we not have been huffing?
could you not have been huffing?
could they not have been huffing?