could helve
Verbo regular: helve - helved- helved

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could helve
you could helve
he could helve
we could helve
you could helve
they could helve 	I could be helving
you could be helving
he could be helving
we could be helving
you could be helving
they could be helving	I could have helved
you could have helved
he could have helved
we could have helved
you could have helved
they could have helved	I could have been helving
you could have been helving
he could have been helving
we could have been helving
you could have been helving
they could have been helving	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not helve
you could not helve
he could not helve
we could not helve
you could not helve
they could not helve 	I could not be helving
you could not be helving
he could not be helving
we could not be helving
you could not be helving
they could not be helving	I could not have helved
you could not have helved
he could not have helved
we could not have helved
you could not have helved
they could not have helved	I could not have been helving
you could not have been helving
he could not have been helving
we could not have been helving
you could not have been helving
they could not have been helving	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I helve?
could you helve?
could he helve?
could we helve?
could you helve?
could they helve? 	could I be helving?
could you be helving?
could he be helving?
could we be helving?
could you be helving?
could they be helving? 	could I have helved?
could you have helved?
could he have helved?
could we have helved?
could you have helved?
could they have helved? 	could I have been helving?
could you have been helving?
could he have been helving?
could we have been helving?
could you have been helving?
could they have been helving? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not helve?
could you not helve?
could he not helve?
could we not helve?
could you not helve?
could they not helve? 	could I not be helving?
could you not be helving?
could he not be helving?
could we not be helving?
could you not be helving?
could they not be helving? 	could I not have helved?
could you not have helved?
could he not have helved?
could we not have helved?
could you not have helved?
could they not have helved? 	could I not have been helving?
could you not have been helving?
could he not have been helving?
could we not have been helving?
could you not have been helving?
could they not have been helving?