I'll be lengthening you'll be lengthening he'll be lengthening we'll be lengthening you'll be lengthening they'll be lengthening
Perfect
I'll have lengthened you'll have lengthened he'll have lengthened we'll have lengthened you'll have lengthened they'll have lengthened
V-ing perfect
I'll have been lengthening you'll have been lengthening he'll have been lengthening we'll have been lengthening you'll have been lengthening they'll have been lengthening
Negation
Simple form
I won't lengthen you won't lengthen he won't lengthen we won't lengthen you won't lengthen they won't lengthen
V-ing form
I won't be lengthening you won't be lengthening he won't be lengthening we won't be lengthening you won't be lengthening they won't be lengthening
Perfect
I won't have lengthened you won't have lengthened he won't have lengthened we won't have lengthened you won't have lengthened they won't have lengthened
V-ing perfect
I won't have been lengthening you won't have been lengthening he won't have been lengthening we won't have been lengthening you won't have been lengthening they won't have been lengthening
Interrogative form
Simple form
will I lengthen? will you lengthen? will he lengthen? will we lengthen? will you lengthen? will they lengthen?
V-ing form
will I be lengthening? will you be lengthening? will he be lengthening? will we be lengthening? will you be lengthening? will they be lengthening?
Perfect
will I have lengthened? will you have lengthened? will he have lengthened? will we have lengthened? will you have lengthened? will they have lengthened?
V-ing perfect
will I have been lengthening? will you have been lengthening? will he have been lengthening? will we have been lengthening? will you have been lengthening? will they have been lengthening?
Interro-negative form
Simple form
won't I lengthen? won't you lengthen? won't he lengthen? won't we lengthen? won't you lengthen? won't they lengthen?
V-ing form
won't I be lengthening? won't you be lengthening? won't he be lengthening? won't we be lengthening? won't you be lengthening? won't they be lengthening?
Perfect
won't I have lengthened? won't you have lengthened? won't he have lengthened? won't we have lengthened? won't you have lengthened? won't they have lengthened?
V-ing perfect
won't I have been lengthening? won't you have been lengthening? won't he have been lengthening? won't we have been lengthening? won't you have been lengthening? won't they have been lengthening?