shall blacken
Regular verb: blacken - blackened- blackened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'll blacken
you'll blacken
she'll blacken
we'll blacken
you'll blacken
they'll blacken 	I'll be blackening
you'll be blackening
she'll be blackening
we'll be blackening
you'll be blackening
they'll be blackening	I'll have blackened
you'll have blackened
she'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
she'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 shan't blacken
you shan't blacken
she shan't blacken
we shan't blacken
you shan't blacken
they shan't blacken 	I shan't be blackening
you shan't be blackening
she shan't be blackening
we shan't be blackening
you shan't be blackening
they shan't be blackening	I shan't have blackened
you shan't have blackened
she shan't have blackened
we shan't have blackened
you shan't have blackened
they shan't have blackened	I shan't have been blackening
you shan't have been blackening
she shan't have been blackening
we shan't have been blackening
you shan't have been blackening
they shan't have been blackening	

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

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