will flatten
Regular verb: flatten - flattened- flattened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'll flatten
you'll flatten
she'll flatten
we'll flatten
you'll flatten
they'll flatten 	I'll be flattening
you'll be flattening
she'll be flattening
we'll be flattening
you'll be flattening
they'll be flattening	I'll have flattened
you'll have flattened
she'll have flattened
we'll have flattened
you'll have flattened
they'll have flattened	I'll have been flattening
you'll have been flattening
she'll have been flattening
we'll have been flattening
you'll have been flattening
they'll have been flattening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I won't flatten
you won't flatten
she won't flatten
we won't flatten
you won't flatten
they won't flatten 	I won't be flattening
you won't be flattening
she won't be flattening
we won't be flattening
you won't be flattening
they won't be flattening	I won't have flattened
you won't have flattened
she won't have flattened
we won't have flattened
you won't have flattened
they won't have flattened	I won't have been flattening
you won't have been flattening
she won't have been flattening
we won't have been flattening
you won't have been flattening
they won't have been flattening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
will I flatten?
will you flatten?
will she flatten?
will we flatten?
will you flatten?
will they flatten? 	will I be flattening?
will you be flattening?
will she be flattening?
will we be flattening?
will you be flattening?
will they be flattening? 	will I have flattened?
will you have flattened?
will she have flattened?
will we have flattened?
will you have flattened?
will they have flattened? 	will I have been flattening?
will you have been flattening?
will she have been flattening?
will we have been flattening?
will you have been flattening?
will they have been flattening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
won't I flatten?
won't you flatten?
won't she flatten?
won't we flatten?
won't you flatten?
won't they flatten? 	won't I be flattening?
won't you be flattening?
won't she be flattening?
won't we be flattening?
won't you be flattening?
won't they be flattening? 	won't I have flattened?
won't you have flattened?
won't she have flattened?
won't we have flattened?
won't you have flattened?
won't they have flattened? 	won't I have been flattening?
won't you have been flattening?
won't she have been flattening?
won't we have been flattening?
won't you have been flattening?
won't they have been flattening?