should countercheck
Verbo regular: countercheck - counterchecked- counterchecked

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should countercheck
you should countercheck
he should countercheck
we should countercheck
you should countercheck
they should countercheck 	I should be counterchecking
you should be counterchecking
he should be counterchecking
we should be counterchecking
you should be counterchecking
they should be counterchecking	I should have counterchecked
you should have counterchecked
he should have counterchecked
we should have counterchecked
you should have counterchecked
they should have counterchecked	I should have been counterchecking
you should have been counterchecking
he should have been counterchecking
we should have been counterchecking
you should have been counterchecking
they should have been counterchecking	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should not countercheck
you should not countercheck
he should not countercheck
we should not countercheck
you should not countercheck
they should not countercheck 	I should not be counterchecking
you should not be counterchecking
he should not be counterchecking
we should not be counterchecking
you should not be counterchecking
they should not be counterchecking	I should not have counterchecked
you should not have counterchecked
he should not have counterchecked
we should not have counterchecked
you should not have counterchecked
they should not have counterchecked	I should not have been counterchecking
you should not have been counterchecking
he should not have been counterchecking
we should not have been counterchecking
you should not have been counterchecking
they should not have been counterchecking	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I countercheck?
should you countercheck?
should he countercheck?
should we countercheck?
should you countercheck?
should they countercheck? 	should I be counterchecking?
should you be counterchecking?
should he be counterchecking?
should we be counterchecking?
should you be counterchecking?
should they be counterchecking? 	should I have counterchecked?
should you have counterchecked?
should he have counterchecked?
should we have counterchecked?
should you have counterchecked?
should they have counterchecked? 	should I have been counterchecking?
should you have been counterchecking?
should he have been counterchecking?
should we have been counterchecking?
should you have been counterchecking?
should they have been counterchecking? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I not countercheck?
should you not countercheck?
should he not countercheck?
should we not countercheck?
should you not countercheck?
should they not countercheck? 	should I not be counterchecking?
should you not be counterchecking?
should he not be counterchecking?
should we not be counterchecking?
should you not be counterchecking?
should they not be counterchecking? 	should I not have counterchecked?
should you not have counterchecked?
should he not have counterchecked?
should we not have counterchecked?
should you not have counterchecked?
should they not have counterchecked? 	should I not have been counterchecking?
should you not have been counterchecking?
should he not have been counterchecking?
should we not have been counterchecking?
should you not have been counterchecking?
should they not have been counterchecking?