to extinguish
Regular verb: extinguish - extinguished- extinguished

Indicative 	
Present 	Present continuous 	Preterite 	Preterite continuous 	
I extinguish
you extinguish
he extinguishes
we extinguish
you extinguish
they extinguish 	I'mextinguishing
you'reextinguishing
he'sextinguishing
we'reextinguishing
you'reextinguishing
they'reextinguishing	I extinguished
you extinguished
he extinguished
we extinguished
you extinguished
they extinguished	Iwasextinguishing
youwereextinguishing
hewasextinguishing
wewereextinguishing
youwereextinguishing
theywereextinguishing	
Present perfect 	Present perfect continuous 	Pluperfect 	Pluperfect continuous 	
I've extinguished
you've extinguished
he's extinguished
we've extinguished
you've extinguished
they've extinguished	I'vebeen extinguishing
you'vebeen extinguishing
he'sbeen extinguishing
we'vebeen extinguishing
you'vebeen extinguishing
they'vebeen extinguishing	I'd extinguished
you'd extinguished
he'd extinguished
we'd extinguished
you'd extinguished
they'd extinguished	I'd been extinguishing
you'd been extinguishing
he'd been extinguishing
we'd been extinguishing
you'd been extinguishing
they'd been extinguishing	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
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	

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
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'd have extinguished
you'd have extinguished
he'd have extinguished
we'd have extinguished
you'd have extinguished
they'd have extinguished	I'd have been extinguishing
you'd have been extinguishing
he'd have been extinguishing
we'd have been extinguishing
you'd have been extinguishing
they'd have been extinguishing	

Infinitive 	
Imperative 	
Infinitive 	 	Imperative 	 	
to extinguish 	 	extinguish
Let's extinguish
extinguish 	 	

Participle 	
Present 	Past 	 	 	
extinguishing	extinguished