should check
Verbo regular: check - checked- checked

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should check
you should check
he should check
we should check
you should check
they should check 	I should be checking
you should be checking
he should be checking
we should be checking
you should be checking
they should be checking	I should have checked
you should have checked
he should have checked
we should have checked
you should have checked
they should have checked	I should have been checking
you should have been checking
he should have been checking
we should have been checking
you should have been checking
they should have been checking	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should not check
you should not check
he should not check
we should not check
you should not check
they should not check 	I should not be checking
you should not be checking
he should not be checking
we should not be checking
you should not be checking
they should not be checking	I should not have checked
you should not have checked
he should not have checked
we should not have checked
you should not have checked
they should not have checked	I should not have been checking
you should not have been checking
he should not have been checking
we should not have been checking
you should not have been checking
they should not have been checking	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I check?
should you check?
should he check?
should we check?
should you check?
should they check? 	should I be checking?
should you be checking?
should he be checking?
should we be checking?
should you be checking?
should they be checking? 	should I have checked?
should you have checked?
should he have checked?
should we have checked?
should you have checked?
should they have checked? 	should I have been checking?
should you have been checking?
should he have been checking?
should we have been checking?
should you have been checking?
should they have been checking? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I not check?
should you not check?
should he not check?
should we not check?
should you not check?
should they not check? 	should I not be checking?
should you not be checking?
should he not be checking?
should we not be checking?
should you not be checking?
should they not be checking? 	should I not have checked?
should you not have checked?
should he not have checked?
should we not have checked?
should you not have checked?
should they not have checked? 	should I not have been checking?
should you not have been checking?
should he not have been checking?
should we not have been checking?
should you not have been checking?
should they not have been checking?