should head
Verbo regular: head - headed- headed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should head
you should head
she should head
we should head
you should head
they should head 	I should be heading
you should be heading
she should be heading
we should be heading
you should be heading
they should be heading	I should have headed
you should have headed
she should have headed
we should have headed
you should have headed
they should have headed	I should have been heading
you should have been heading
she should have been heading
we should have been heading
you should have been heading
they should have been heading	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should not head
you should not head
she should not head
we should not head
you should not head
they should not head 	I should not be heading
you should not be heading
she should not be heading
we should not be heading
you should not be heading
they should not be heading	I should not have headed
you should not have headed
she should not have headed
we should not have headed
you should not have headed
they should not have headed	I should not have been heading
you should not have been heading
she should not have been heading
we should not have been heading
you should not have been heading
they should not have been heading	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I head?
should you head?
should she head?
should we head?
should you head?
should they head? 	should I be heading?
should you be heading?
should she be heading?
should we be heading?
should you be heading?
should they be heading? 	should I have headed?
should you have headed?
should she have headed?
should we have headed?
should you have headed?
should they have headed? 	should I have been heading?
should you have been heading?
should she have been heading?
should we have been heading?
should you have been heading?
should they have been heading? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I not head?
should you not head?
should she not head?
should we not head?
should you not head?
should they not head? 	should I not be heading?
should you not be heading?
should she not be heading?
should we not be heading?
should you not be heading?
should they not be heading? 	should I not have headed?
should you not have headed?
should she not have headed?
should we not have headed?
should you not have headed?
should they not have headed? 	should I not have been heading?
should you not have been heading?
should she not have been heading?
should we not have been heading?
should you not have been heading?
should they not have been heading?