English verb conjugation
WILL LENGTHEN

Regular verb: lengthen - lengthened - lengthened

Affirmation

Simple form	V-ing form
I will lengthen you will lengthen he will lengthen we will lengthen you will lengthen they will lengthen	I will be lengthening you will be lengthening he will be lengthening we will be lengthening you will be lengthening they will be lengthening
Perfect	V-ing perfect
I will have lengthened you will have lengthened he will have lengthened we will have lengthened you will have lengthened they will have lengthened	I will have been lengthening you will have been lengthening he will have been lengthening we will have been lengthening you will have been lengthening they will have been lengthening

Negation

Simple form	V-ing form
I will not lengthen you will not lengthen he will not lengthen we will not lengthen you will not lengthen they will not lengthen	I will not be lengthening you will not be lengthening he will not be lengthening we will not be lengthening you will not be lengthening they will not be lengthening
Perfect	V-ing perfect
I will not have lengthened you will not have lengthened he will not have lengthened we will not have lengthened you will not have lengthened they will not have lengthened	I will not have been lengthening you will not have been lengthening he will not have been lengthening we will not have been lengthening you will not have been lengthening they will not have been lengthening

Interrogative form

Simple form	V-ing form
will I lengthen? will you lengthen? will he lengthen? will we lengthen? will you lengthen? will they lengthen?	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	V-ing 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?	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	V-ing form
will I not lengthen? will you not lengthen? will he not lengthen? will we not lengthen? will you not lengthen? will they not lengthen?	will I not be lengthening? will you not be lengthening? will he not be lengthening? will we not be lengthening? will you not be lengthening? will they not be lengthening?
Perfect	V-ing perfect
will I not have lengthened? will you not have lengthened? will he not have lengthened? will we not have lengthened? will you not have lengthened? will they not have lengthened?	will I not have been lengthening? will you not have been lengthening? will he not have been lengthening? will we not have been lengthening? will you not have been lengthening? will they not have been lengthening?