should extinguish
Verbo regular: extinguish - extinguished- extinguished

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I'd extinguish
you'd extinguish
he'd extinguish
we'd extinguish
you'd extinguish
they'd extinguish 	I'd be extinguishing
you'd be extinguishing
he'd be extinguishing
we'd be extinguishing
you'd be extinguishing
they'd be extinguishing	I should've extinguished
you should've extinguished
he should've extinguished
we should've extinguished
you should've extinguished
they should've extinguished	I should've been extinguishing
you should've been extinguishing
he should've been extinguishing
we should've been extinguishing
you should've been extinguishing
they should've been extinguishing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I shouldn't extinguish
you shouldn't extinguish
he shouldn't extinguish
we shouldn't extinguish
you shouldn't extinguish
they shouldn't extinguish 	I shouldn't be extinguishing
you shouldn't be extinguishing
he shouldn't be extinguishing
we shouldn't be extinguishing
you shouldn't be extinguishing
they shouldn't be extinguishing	I shouldn't have extinguished
you shouldn't have extinguished
he shouldn't have extinguished
we shouldn't have extinguished
you shouldn't have extinguished
they shouldn't have extinguished	I shouldn't have been extinguishing
you shouldn't have been extinguishing
he shouldn't have been extinguishing
we shouldn't have been extinguishing
you shouldn't have been extinguishing
they shouldn't have been extinguishing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
should I extinguish?
should you extinguish?
should he extinguish?
should we extinguish?
should you extinguish?
should they extinguish? 	should I be extinguishing?
should you be extinguishing?
should he be extinguishing?
should we be extinguishing?
should you be extinguishing?
should they be extinguishing? 	should I have extinguished?
should you have extinguished?
should he have extinguished?
should we have extinguished?
should you have extinguished?
should they have extinguished? 	should I have been extinguishing?
should you have been extinguishing?
should he have been extinguishing?
should we have been extinguishing?
should you have been extinguishing?
should they have been extinguishing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
shouldn't I extinguish?
shouldn't you extinguish?
shouldn't he extinguish?
shouldn't we extinguish?
shouldn't you extinguish?
shouldn't they extinguish? 	shouldn't I be extinguishing?
shouldn't you be extinguishing?
shouldn't he be extinguishing?
shouldn't we be extinguishing?
shouldn't you be extinguishing?
shouldn't they be extinguishing? 	shouldn't I have extinguished?
shouldn't you have extinguished?
shouldn't he have extinguished?
shouldn't we have extinguished?
shouldn't you have extinguished?
shouldn't they have extinguished? 	shouldn't I have been extinguishing?
shouldn't you have been extinguishing?
shouldn't he have been extinguishing?
shouldn't we have been extinguishing?
shouldn't you have been extinguishing?
shouldn't they have been extinguishing?