could extinguish
Regelmä&szlig;iges Verb: extinguish - extinguished- extinguished

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could extinguish
you could extinguish
she could extinguish
we could extinguish
you could extinguish
they could extinguish 	I could be extinguishing
you could be extinguishing
she could be extinguishing
we could be extinguishing
you could be extinguishing
they could be extinguishing	I could have extinguished
you could have extinguished
she could have extinguished
we could have extinguished
you could have extinguished
they could have extinguished	I could have been extinguishing
you could have been extinguishing
she could have been extinguishing
we could have been extinguishing
you could have been extinguishing
they could have been extinguishing	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I couldn't extinguish
you couldn't extinguish
she couldn't extinguish
we couldn't extinguish
you couldn't extinguish
they couldn't extinguish 	I couldn't be extinguishing
you couldn't be extinguishing
she couldn't be extinguishing
we couldn't be extinguishing
you couldn't be extinguishing
they couldn't be extinguishing	I couldn't have extinguished
you couldn't have extinguished
she couldn't have extinguished
we couldn't have extinguished
you couldn't have extinguished
they couldn't have extinguished	I couldn't have been extinguishing
you couldn't have been extinguishing
she couldn't have been extinguishing
we couldn't have been extinguishing
you couldn't have been extinguishing
they couldn't have been extinguishing	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I extinguish?
could you extinguish?
could she extinguish?
could we extinguish?
could you extinguish?
could they extinguish? 	could I be extinguishing?
could you be extinguishing?
could she be extinguishing?
could we be extinguishing?
could you be extinguishing?
could they be extinguishing? 	could I have extinguished?
could you have extinguished?
could she have extinguished?
could we have extinguished?
could you have extinguished?
could they have extinguished? 	could I have been extinguishing?
could you have been extinguishing?
could she have been extinguishing?
could we have been extinguishing?
could you have been extinguishing?
could they have been extinguishing? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
couldn't I extinguish?
couldn't you extinguish?
couldn't she extinguish?
couldn't we extinguish?
couldn't you extinguish?
couldn't they extinguish? 	couldn't I be extinguishing?
couldn't you be extinguishing?
couldn't she be extinguishing?
couldn't we be extinguishing?
couldn't you be extinguishing?
couldn't they be extinguishing? 	couldn't I have extinguished?
couldn't you have extinguished?
couldn't she have extinguished?
couldn't we have extinguished?
couldn't you have extinguished?
couldn't they have extinguished? 	couldn't I have been extinguishing?
couldn't you have been extinguishing?
couldn't she have been extinguishing?
couldn't we have been extinguishing?
couldn't you have been extinguishing?
couldn't they have been extinguishing?