to blacken
Regular verb: blacken - blackened- blackened

Indicative 	
Present 	Present continuous 	Preterite 	Preterite continuous 	
I blacken
you blacken
he blackens
we blacken
you blacken
they blacken 	I'mblackening
you'reblackening
he'sblackening
we'reblackening
you'reblackening
they'reblackening	I blackened
you blackened
he blackened
we blackened
you blackened
they blackened	Iwasblackening
youwereblackening
hewasblackening
wewereblackening
youwereblackening
theywereblackening	
Present perfect 	Present perfect continuous 	Pluperfect 	Pluperfect continuous 	
I've blackened
you've blackened
he's blackened
we've blackened
you've blackened
they've blackened	I'vebeen blackening
you'vebeen blackening
he'sbeen blackening
we'vebeen blackening
you'vebeen blackening
they'vebeen blackening	I'd blackened
you'd blackened
he'd blackened
we'd blackened
you'd blackened
they'd blackened	I'd been blackening
you'd been blackening
he'd been blackening
we'd been blackening
you'd been blackening
they'd been blackening	
Future 	Future continuous 	Future perfect 	Future perfect continuous 	
I'll blacken
you'll blacken
he'll blacken
we'll blacken
you'll blacken
they'll blacken 	I'll be blackening
you'll be blackening
he'll be blackening
we'll be blackening
you'll be blackening
they'll be blackening	I'll have blackened
you'll have blackened
he'll have blackened
we'll have blackened
you'll have blackened
they'll have blackened	I'll have been blackening
you'll have been blackening
he'll have been blackening
we'll have been blackening
you'll have been blackening
they'll have been blackening	

Conditional 	
Present 	Present continuous 	Past 	Past continuous 	
I'd blacken
you'd blacken
he'd blacken
we'd blacken
you'd blacken
they'd blacken 	I'd be blackening
you'd be blackening
he'd be blackening
we'd be blackening
you'd be blackening
they'd be blackening	I'd have blackened
you'd have blackened
he'd have blackened
we'd have blackened
you'd have blackened
they'd have blackened	I'd have been blackening
you'd have been blackening
he'd have been blackening
we'd have been blackening
you'd have been blackening
they'd have been blackening	

Infinitive 	
Imperative 	
Infinitive 	 	Imperative 	 	
to blacken 	 	blacken
Let's blacken
blacken 	 	

Participle 	
Present 	Past 	 	 	
blackening	blackened