should spring
Verbo irregular: spring - sprang, sprung- sprung

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should spring
you should spring
he should spring
we should spring
you should spring
they should spring 	I should be springing
you should be springing
he should be springing
we should be springing
you should be springing
they should be springing	I should have sprung
you should have sprung
he should have sprung
we should have sprung
you should have sprung
they should have sprung	I should have been springing
you should have been springing
he should have been springing
we should have been springing
you should have been springing
they should have been springing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should not spring
you should not spring
he should not spring
we should not spring
you should not spring
they should not spring 	I should not be springing
you should not be springing
he should not be springing
we should not be springing
you should not be springing
they should not be springing	I should not have sprung
you should not have sprung
he should not have sprung
we should not have sprung
you should not have sprung
they should not have sprung	I should not have been springing
you should not have been springing
he should not have been springing
we should not have been springing
you should not have been springing
they should not have been springing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I spring?
should you spring?
should he spring?
should we spring?
should you spring?
should they spring? 	should I be springing?
should you be springing?
should he be springing?
should we be springing?
should you be springing?
should they be springing? 	should I have sprung?
should you have sprung?
should he have sprung?
should we have sprung?
should you have sprung?
should they have sprung? 	should I have been springing?
should you have been springing?
should he have been springing?
should we have been springing?
should you have been springing?
should they have been springing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I not spring?
should you not spring?
should he not spring?
should we not spring?
should you not spring?
should they not spring? 	should I not be springing?
should you not be springing?
should he not be springing?
should we not be springing?
should you not be springing?
should they not be springing? 	should I not have sprung?
should you not have sprung?
should he not have sprung?
should we not have sprung?
should you not have sprung?
should they not have sprung? 	should I not have been springing?
should you not have been springing?
should he not have been springing?
should we not have been springing?
should you not have been springing?
should they not have been springing?