should calculate
Verbo regular: calculate - calculated- calculated

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should calculate
you should calculate
he should calculate
we should calculate
you should calculate
they should calculate 	I should be calculating
you should be calculating
he should be calculating
we should be calculating
you should be calculating
they should be calculating	I should have calculated
you should have calculated
he should have calculated
we should have calculated
you should have calculated
they should have calculated	I should have been calculating
you should have been calculating
he should have been calculating
we should have been calculating
you should have been calculating
they should have been calculating	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should not calculate
you should not calculate
he should not calculate
we should not calculate
you should not calculate
they should not calculate 	I should not be calculating
you should not be calculating
he should not be calculating
we should not be calculating
you should not be calculating
they should not be calculating	I should not have calculated
you should not have calculated
he should not have calculated
we should not have calculated
you should not have calculated
they should not have calculated	I should not have been calculating
you should not have been calculating
he should not have been calculating
we should not have been calculating
you should not have been calculating
they should not have been calculating	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I calculate?
should you calculate?
should he calculate?
should we calculate?
should you calculate?
should they calculate? 	should I be calculating?
should you be calculating?
should he be calculating?
should we be calculating?
should you be calculating?
should they be calculating? 	should I have calculated?
should you have calculated?
should he have calculated?
should we have calculated?
should you have calculated?
should they have calculated? 	should I have been calculating?
should you have been calculating?
should he have been calculating?
should we have been calculating?
should you have been calculating?
should they have been calculating? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I not calculate?
should you not calculate?
should he not calculate?
should we not calculate?
should you not calculate?
should they not calculate? 	should I not be calculating?
should you not be calculating?
should he not be calculating?
should we not be calculating?
should you not be calculating?
should they not be calculating? 	should I not have calculated?
should you not have calculated?
should he not have calculated?
should we not have calculated?
should you not have calculated?
should they not have calculated? 	should I not have been calculating?
should you not have been calculating?
should he not have been calculating?
should we not have been calculating?
should you not have been calculating?
should they not have been calculating?