shall extinguish
Regular verb: extinguish - extinguished- extinguished

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'll extinguish
you'll extinguish
he'll extinguish
we'll extinguish
you'll extinguish
they'll extinguish 	I'll be extinguishing
you'll be extinguishing
he'll be extinguishing
we'll be extinguishing
you'll be extinguishing
they'll be extinguishing	I'll have extinguished
you'll have extinguished
he'll have extinguished
we'll have extinguished
you'll have extinguished
they'll have extinguished	I'll have been extinguishing
you'll have been extinguishing
he'll have been extinguishing
we'll have been extinguishing
you'll have been extinguishing
they'll have been extinguishing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shan't extinguish
you shan't extinguish
he shan't extinguish
we shan't extinguish
you shan't extinguish
they shan't extinguish 	I shan't be extinguishing
you shan't be extinguishing
he shan't be extinguishing
we shan't be extinguishing
you shan't be extinguishing
they shan't be extinguishing	I shan't have extinguished
you shan't have extinguished
he shan't have extinguished
we shan't have extinguished
you shan't have extinguished
they shan't have extinguished	I shan't have been extinguishing
you shan't have been extinguishing
he shan't have been extinguishing
we shan't have been extinguishing
you shan't have been extinguishing
they shan't have been extinguishing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shall I extinguish?
shall you extinguish?
shall he extinguish?
shall we extinguish?
shall you extinguish?
shall they extinguish? 	shall I be extinguishing?
shall you be extinguishing?
shall he be extinguishing?
shall we be extinguishing?
shall you be extinguishing?
shall they be extinguishing? 	shall I have extinguished?
shall you have extinguished?
shall he have extinguished?
shall we have extinguished?
shall you have extinguished?
shall they have extinguished? 	shall I have been extinguishing?
shall you have been extinguishing?
shall he have been extinguishing?
shall we have been extinguishing?
shall you have been extinguishing?
shall they have been extinguishing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shan't I extinguish?
shan't you extinguish?
shan't he extinguish?
shan't we extinguish?
shan't you extinguish?
shan't they extinguish? 	shan't I be extinguishing?
shan't you be extinguishing?
shan't he be extinguishing?
shan't we be extinguishing?
shan't you be extinguishing?
shan't they be extinguishing? 	shan't I have extinguished?
shan't you have extinguished?
shan't he have extinguished?
shan't we have extinguished?
shan't you have extinguished?
shan't they have extinguished? 	shan't I have been extinguishing?
shan't you have been extinguishing?
shan't he have been extinguishing?
shan't we have been extinguishing?
shan't you have been extinguishing?
shan't they have been extinguishing?