should pi
Verbo regular: pi - pied- pied

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should pi
you should pi
he should pi
we should pi
you should pi
they should pi 	I should be piing
you should be piing
he should be piing
we should be piing
you should be piing
they should be piing	I should have pied
you should have pied
he should have pied
we should have pied
you should have pied
they should have pied	I should have been piing
you should have been piing
he should have been piing
we should have been piing
you should have been piing
they should have been piing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should not pi
you should not pi
he should not pi
we should not pi
you should not pi
they should not pi 	I should not be piing
you should not be piing
he should not be piing
we should not be piing
you should not be piing
they should not be piing	I should not have pied
you should not have pied
he should not have pied
we should not have pied
you should not have pied
they should not have pied	I should not have been piing
you should not have been piing
he should not have been piing
we should not have been piing
you should not have been piing
they should not have been piing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I pi?
should you pi?
should he pi?
should we pi?
should you pi?
should they pi? 	should I be piing?
should you be piing?
should he be piing?
should we be piing?
should you be piing?
should they be piing? 	should I have pied?
should you have pied?
should he have pied?
should we have pied?
should you have pied?
should they have pied? 	should I have been piing?
should you have been piing?
should he have been piing?
should we have been piing?
should you have been piing?
should they have been piing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I not pi?
should you not pi?
should he not pi?
should we not pi?
should you not pi?
should they not pi? 	should I not be piing?
should you not be piing?
should he not be piing?
should we not be piing?
should you not be piing?
should they not be piing? 	should I not have pied?
should you not have pied?
should he not have pied?
should we not have pied?
should you not have pied?
should they not have pied? 	should I not have been piing?
should you not have been piing?
should he not have been piing?
should we not have been piing?
should you not have been piing?
should they not have been piing?