Conjugação do verbo inglês
MUST BACKSTOP

Verbo regular: backstop - backstoped - backstoped

Afirmação

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

Negação

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

Forma interrogativa

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

Forma interro-Negação

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