should know
Verbo irregular: know - knew- known

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should know
you should know
he should know
we should know
you should know
they should know 	I should be knowing
you should be knowing
he should be knowing
we should be knowing
you should be knowing
they should be knowing	I should have known
you should have known
he should have known
we should have known
you should have known
they should have known	I should have been knowing
you should have been knowing
he should have been knowing
we should have been knowing
you should have been knowing
they should have been knowing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should not know
you should not know
he should not know
we should not know
you should not know
they should not know 	I should not be knowing
you should not be knowing
he should not be knowing
we should not be knowing
you should not be knowing
they should not be knowing	I should not have known
you should not have known
he should not have known
we should not have known
you should not have known
they should not have known	I should not have been knowing
you should not have been knowing
he should not have been knowing
we should not have been knowing
you should not have been knowing
they should not have been knowing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com 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-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I not know?
should you not know?
should he not know?
should we not know?
should you not know?
should they not know? 	should I not be knowing?
should you not be knowing?
should he not be knowing?
should we not be knowing?
should you not be knowing?
should they not be knowing? 	should I not have known?
should you not have known?
should he not have known?
should we not have known?
should you not have known?
should they not have known? 	should I not have been knowing?
should you not have been knowing?
should he not have been knowing?
should we not have been knowing?
should you not have been knowing?
should they not have been knowing?