should backstop
Verbo regular: backstop - backstoped- backstoped

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should backstop
you should backstop
she should backstop
we should backstop
you should backstop
they should backstop 	I should be backstoping
you should be backstoping
she should be backstoping
we should be backstoping
you should be backstoping
they should be backstoping	I should have backstoped
you should have backstoped
she should have backstoped
we should have backstoped
you should have backstoped
they should have backstoped	I should have been backstoping
you should have been backstoping
she should have been backstoping
we should have been backstoping
you should have been backstoping
they should have been backstoping	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I should not backstop
you should not backstop
she should not backstop
we should not backstop
you should not backstop
they should not backstop 	I should not be backstoping
you should not be backstoping
she should not be backstoping
we should not be backstoping
you should not be backstoping
they should not be backstoping	I should not have backstoped
you should not have backstoped
she should not have backstoped
we should not have backstoped
you should not have backstoped
they should not have backstoped	I should not have been backstoping
you should not have been backstoping
she should not have been backstoping
we should not have been backstoping
you should not have been backstoping
they should not have been backstoping	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I backstop?
should you backstop?
should she backstop?
should we backstop?
should you backstop?
should they backstop? 	should I be backstoping?
should you be backstoping?
should she be backstoping?
should we be backstoping?
should you be backstoping?
should they be backstoping? 	should I have backstoped?
should you have backstoped?
should she have backstoped?
should we have backstoped?
should you have backstoped?
should they have backstoped? 	should I have been backstoping?
should you have been backstoping?
should she have been backstoping?
should we have been backstoping?
should you have been backstoping?
should they have been backstoping? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I not backstop?
should you not backstop?
should she not backstop?
should we not backstop?
should you not backstop?
should they not backstop? 	should I not be backstoping?
should you not be backstoping?
should she not be backstoping?
should we not be backstoping?
should you not be backstoping?
should they not be backstoping? 	should I not have backstoped?
should you not have backstoped?
should she not have backstoped?
should we not have backstoped?
should you not have backstoped?
should they not have backstoped? 	should I not have been backstoping?
should you not have been backstoping?
should she not have been backstoping?
should we not have been backstoping?
should you not have been backstoping?
should they not have been backstoping?