will blacken
Regular verb: blacken - blackened- blackened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I won't blacken
you won't blacken
he won't blacken
we won't blacken
you won't blacken
they won't blacken 	I won't be blackening
you won't be blackening
he won't be blackening
we won't be blackening
you won't be blackening
they won't be blackening	I won't have blackened
you won't have blackened
he won't have blackened
we won't have blackened
you won't have blackened
they won't have blackened	I won't have been blackening
you won't have been blackening
he won't have been blackening
we won't have been blackening
you won't have been blackening
they won't have been blackening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
will I blacken?
will you blacken?
will he blacken?
will we blacken?
will you blacken?
will they blacken? 	will I be blackening?
will you be blackening?
will he be blackening?
will we be blackening?
will you be blackening?
will they be blackening? 	will I have blackened?
will you have blackened?
will he have blackened?
will we have blackened?
will you have blackened?
will they have blackened? 	will I have been blackening?
will you have been blackening?
will he have been blackening?
will we have been blackening?
will you have been blackening?
will they have been blackening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
won't I blacken?
won't you blacken?
won't he blacken?
won't we blacken?
won't you blacken?
won't they blacken? 	won't I be blackening?
won't you be blackening?
won't he be blackening?
won't we be blackening?
won't you be blackening?
won't they be blackening? 	won't I have blackened?
won't you have blackened?
won't he have blackened?
won't we have blackened?
won't you have blackened?
won't they have blackened? 	won't I have been blackening?
won't you have been blackening?
won't he have been blackening?
won't we have been blackening?
won't you have been blackening?
won't they have been blackening?