should alert
Verbo regular: alert - alerted- alerted

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should alert
you should alert
he should alert
we should alert
you should alert
they should alert 	I should be alerting
you should be alerting
he should be alerting
we should be alerting
you should be alerting
they should be alerting	I should have alerted
you should have alerted
he should have alerted
we should have alerted
you should have alerted
they should have alerted	I should have been alerting
you should have been alerting
he should have been alerting
we should have been alerting
you should have been alerting
they should have been alerting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should not alert
you should not alert
he should not alert
we should not alert
you should not alert
they should not alert 	I should not be alerting
you should not be alerting
he should not be alerting
we should not be alerting
you should not be alerting
they should not be alerting	I should not have alerted
you should not have alerted
he should not have alerted
we should not have alerted
you should not have alerted
they should not have alerted	I should not have been alerting
you should not have been alerting
he should not have been alerting
we should not have been alerting
you should not have been alerting
they should not have been alerting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I alert?
should you alert?
should he alert?
should we alert?
should you alert?
should they alert? 	should I be alerting?
should you be alerting?
should he be alerting?
should we be alerting?
should you be alerting?
should they be alerting? 	should I have alerted?
should you have alerted?
should he have alerted?
should we have alerted?
should you have alerted?
should they have alerted? 	should I have been alerting?
should you have been alerting?
should he have been alerting?
should we have been alerting?
should you have been alerting?
should they have been alerting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I not alert?
should you not alert?
should he not alert?
should we not alert?
should you not alert?
should they not alert? 	should I not be alerting?
should you not be alerting?
should he not be alerting?
should we not be alerting?
should you not be alerting?
should they not be alerting? 	should I not have alerted?
should you not have alerted?
should he not have alerted?
should we not have alerted?
should you not have alerted?
should they not have alerted? 	should I not have been alerting?
should you not have been alerting?
should he not have been alerting?
should we not have been alerting?
should you not have been alerting?
should they not have been alerting?