should serve
Verbo regular: serve - served- served

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I'd serve
you'd serve
she'd serve
we'd serve
you'd serve
they'd serve 	I'd be serving
you'd be serving
she'd be serving
we'd be serving
you'd be serving
they'd be serving	I should've served
you should've served
she should've served
we should've served
you should've served
they should've served	I should've been serving
you should've been serving
she should've been serving
we should've been serving
you should've been serving
they should've been serving	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shouldn't serve
you shouldn't serve
she shouldn't serve
we shouldn't serve
you shouldn't serve
they shouldn't serve 	I shouldn't be serving
you shouldn't be serving
she shouldn't be serving
we shouldn't be serving
you shouldn't be serving
they shouldn't be serving	I shouldn't have served
you shouldn't have served
she shouldn't have served
we shouldn't have served
you shouldn't have served
they shouldn't have served	I shouldn't have been serving
you shouldn't have been serving
she shouldn't have been serving
we shouldn't have been serving
you shouldn't have been serving
they shouldn't have been serving	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I serve?
should you serve?
should she serve?
should we serve?
should you serve?
should they serve? 	should I be serving?
should you be serving?
should she be serving?
should we be serving?
should you be serving?
should they be serving? 	should I have served?
should you have served?
should she have served?
should we have served?
should you have served?
should they have served? 	should I have been serving?
should you have been serving?
should she have been serving?
should we have been serving?
should you have been serving?
should they have been serving? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shouldn't I serve?
shouldn't you serve?
shouldn't she serve?
shouldn't we serve?
shouldn't you serve?
shouldn't they serve? 	shouldn't I be serving?
shouldn't you be serving?
shouldn't she be serving?
shouldn't we be serving?
shouldn't you be serving?
shouldn't they be serving? 	shouldn't I have served?
shouldn't you have served?
shouldn't she have served?
shouldn't we have served?
shouldn't you have served?
shouldn't they have served? 	shouldn't I have been serving?
shouldn't you have been serving?
shouldn't she have been serving?
shouldn't we have been serving?
shouldn't you have been serving?
shouldn't they have been serving?