should know
Verbo irregular: know - knew- known

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I'd know
you'd know
he'd know
we'd know
you'd know
they'd know 	I'd be knowing
you'd be knowing
he'd be knowing
we'd be knowing
you'd be knowing
they'd be knowing	I should've known
you should've known
he should've known
we should've known
you should've known
they should've known	I should've been knowing
you should've been knowing
he should've been knowing
we should've been knowing
you should've been knowing
they should've been knowing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I shouldn't know
you shouldn't know
he shouldn't know
we shouldn't know
you shouldn't know
they shouldn't know 	I shouldn't be knowing
you shouldn't be knowing
he shouldn't be knowing
we shouldn't be knowing
you shouldn't be knowing
they shouldn't be knowing	I shouldn't have known
you shouldn't have known
he shouldn't have known
we shouldn't have known
you shouldn't have known
they shouldn't have known	I shouldn't have been knowing
you shouldn't have been knowing
he shouldn't have been knowing
we shouldn't have been knowing
you shouldn't have been knowing
they shouldn't have been knowing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I know?
should you know?
should he know?
should we know?
should you know?
should they know? 	should I be knowing?
should you be knowing?
should he be knowing?
should we be knowing?
should you be knowing?
should they be knowing? 	should I have known?
should you have known?
should he have known?
should we have known?
should you have known?
should they have known? 	should I have been knowing?
should you have been knowing?
should he have been knowing?
should we have been knowing?
should you have been knowing?
should they have been knowing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
shouldn't I know?
shouldn't you know?
shouldn't he know?
shouldn't we know?
shouldn't you know?
shouldn't they know? 	shouldn't I be knowing?
shouldn't you be knowing?
shouldn't he be knowing?
shouldn't we be knowing?
shouldn't you be knowing?
shouldn't they be knowing? 	shouldn't I have known?
shouldn't you have known?
shouldn't he have known?
shouldn't we have known?
shouldn't you have known?
shouldn't they have known? 	shouldn't I have been knowing?
shouldn't you have been knowing?
shouldn't he have been knowing?
shouldn't we have been knowing?
shouldn't you have been knowing?
shouldn't they have been knowing?