might flatten
Regular verb: flatten - flattened- flattened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I might flatten
you might flatten
he might flatten
we might flatten
you might flatten
they might flatten 	I might be flattening
you might be flattening
he might be flattening
we might be flattening
you might be flattening
they might be flattening	I might have flattened
you might have flattened
he might have flattened
we might have flattened
you might have flattened
they might have flattened	I might have been flattening
you might have been flattening
he might have been flattening
we might have been flattening
you might have been flattening
they might have been flattening	

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

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

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