should open
Verbo regular: open - opened- opened

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should open
you should open
he should open
we should open
you should open
they should open 	I should be opening
you should be opening
he should be opening
we should be opening
you should be opening
they should be opening	I should have opened
you should have opened
he should have opened
we should have opened
you should have opened
they should have opened	I should have been opening
you should have been opening
he should have been opening
we should have been opening
you should have been opening
they should have been opening	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should not open
you should not open
he should not open
we should not open
you should not open
they should not open 	I should not be opening
you should not be opening
he should not be opening
we should not be opening
you should not be opening
they should not be opening	I should not have opened
you should not have opened
he should not have opened
we should not have opened
you should not have opened
they should not have opened	I should not have been opening
you should not have been opening
he should not have been opening
we should not have been opening
you should not have been opening
they should not have been opening	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I open?
should you open?
should he open?
should we open?
should you open?
should they open? 	should I be opening?
should you be opening?
should he be opening?
should we be opening?
should you be opening?
should they be opening? 	should I have opened?
should you have opened?
should he have opened?
should we have opened?
should you have opened?
should they have opened? 	should I have been opening?
should you have been opening?
should he have been opening?
should we have been opening?
should you have been opening?
should they have been opening? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I not open?
should you not open?
should he not open?
should we not open?
should you not open?
should they not open? 	should I not be opening?
should you not be opening?
should he not be opening?
should we not be opening?
should you not be opening?
should they not be opening? 	should I not have opened?
should you not have opened?
should he not have opened?
should we not have opened?
should you not have opened?
should they not have opened? 	should I not have been opening?
should you not have been opening?
should he not have been opening?
should we not have been opening?
should you not have been opening?
should they not have been opening?