should pin
Verbo regular: pin - pinned- pinned

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should pin
you should pin
he should pin
we should pin
you should pin
they should pin 	I should be pinning
you should be pinning
he should be pinning
we should be pinning
you should be pinning
they should be pinning	I should have pinned
you should have pinned
he should have pinned
we should have pinned
you should have pinned
they should have pinned	I should have been pinning
you should have been pinning
he should have been pinning
we should have been pinning
you should have been pinning
they should have been pinning	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should not pin
you should not pin
he should not pin
we should not pin
you should not pin
they should not pin 	I should not be pinning
you should not be pinning
he should not be pinning
we should not be pinning
you should not be pinning
they should not be pinning	I should not have pinned
you should not have pinned
he should not have pinned
we should not have pinned
you should not have pinned
they should not have pinned	I should not have been pinning
you should not have been pinning
he should not have been pinning
we should not have been pinning
you should not have been pinning
they should not have been pinning	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I pin?
should you pin?
should he pin?
should we pin?
should you pin?
should they pin? 	should I be pinning?
should you be pinning?
should he be pinning?
should we be pinning?
should you be pinning?
should they be pinning? 	should I have pinned?
should you have pinned?
should he have pinned?
should we have pinned?
should you have pinned?
should they have pinned? 	should I have been pinning?
should you have been pinning?
should he have been pinning?
should we have been pinning?
should you have been pinning?
should they have been pinning? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I not pin?
should you not pin?
should he not pin?
should we not pin?
should you not pin?
should they not pin? 	should I not be pinning?
should you not be pinning?
should he not be pinning?
should we not be pinning?
should you not be pinning?
should they not be pinning? 	should I not have pinned?
should you not have pinned?
should he not have pinned?
should we not have pinned?
should you not have pinned?
should they not have pinned? 	should I not have been pinning?
should you not have been pinning?
should he not have been pinning?
should we not have been pinning?
should you not have been pinning?
should they not have been pinning?