should extinguish
Verbo regular: extinguish - extinguished- extinguished

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should extinguish
you should extinguish
she should extinguish
we should extinguish
you should extinguish
they should extinguish 	I should be extinguishing
you should be extinguishing
she should be extinguishing
we should be extinguishing
you should be extinguishing
they should be extinguishing	I should have extinguished
you should have extinguished
she should have extinguished
we should have extinguished
you should have extinguished
they should have extinguished	I should have been extinguishing
you should have been extinguishing
she should have been extinguishing
we should have been extinguishing
you should have been extinguishing
they should have been extinguishing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I should not extinguish
you should not extinguish
she should not extinguish
we should not extinguish
you should not extinguish
they should not extinguish 	I should not be extinguishing
you should not be extinguishing
she should not be extinguishing
we should not be extinguishing
you should not be extinguishing
they should not be extinguishing	I should not have extinguished
you should not have extinguished
she should not have extinguished
we should not have extinguished
you should not have extinguished
they should not have extinguished	I should not have been extinguishing
you should not have been extinguishing
she should not have been extinguishing
we should not have been extinguishing
you should not have been extinguishing
they should not have been extinguishing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I extinguish?
should you extinguish?
should she extinguish?
should we extinguish?
should you extinguish?
should they extinguish? 	should I be extinguishing?
should you be extinguishing?
should she be extinguishing?
should we be extinguishing?
should you be extinguishing?
should they be extinguishing? 	should I have extinguished?
should you have extinguished?
should she 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 she have been extinguishing?
should we have been extinguishing?
should you have been extinguishing?
should they have been extinguishing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
should I not extinguish?
should you not extinguish?
should she not extinguish?
should we not extinguish?
should you not extinguish?
should they not extinguish? 	should I not be extinguishing?
should you not be extinguishing?
should she not be extinguishing?
should we not be extinguishing?
should you not be extinguishing?
should they not be extinguishing? 	should I not have extinguished?
should you not have extinguished?
should she not have extinguished?
should we not have extinguished?
should you not have extinguished?
should they not have extinguished? 	should I not have been extinguishing?
should you not have been extinguishing?
should she not have been extinguishing?
should we not have been extinguishing?
should you not have been extinguishing?
should they not have been extinguishing?