English verb conjugation
WILL STIFF

Regular verb: stiff - stiffed - stiffed

Affirmation

Simple form	V-ing form
I will stiff you will stiff she will stiff we will stiff you will stiff they will stiff	I will be stiffing you will be stiffing she will be stiffing we will be stiffing you will be stiffing they will be stiffing
Perfect	V-ing perfect
I will have stiffed you will have stiffed she will have stiffed we will have stiffed you will have stiffed they will have stiffed	I will have been stiffing you will have been stiffing she will have been stiffing we will have been stiffing you will have been stiffing they will have been stiffing

Negation

Simple form	V-ing form
I will not stiff you will not stiff she will not stiff we will not stiff you will not stiff they will not stiff	I will not be stiffing you will not be stiffing she will not be stiffing we will not be stiffing you will not be stiffing they will not be stiffing
Perfect	V-ing perfect
I will not have stiffed you will not have stiffed she will not have stiffed we will not have stiffed you will not have stiffed they will not have stiffed	I will not have been stiffing you will not have been stiffing she will not have been stiffing we will not have been stiffing you will not have been stiffing they will not have been stiffing

Interrogative form

Simple form	V-ing form
will I stiff? will you stiff? will she stiff? will we stiff? will you stiff? will they stiff?	will I be stiffing? will you be stiffing? will she be stiffing? will we be stiffing? will you be stiffing? will they be stiffing?
Perfect	V-ing perfect
will I have stiffed? will you have stiffed? will she have stiffed? will we have stiffed? will you have stiffed? will they have stiffed?	will I have been stiffing? will you have been stiffing? will she have been stiffing? will we have been stiffing? will you have been stiffing? will they have been stiffing?

Interro-negative form

Simple form	V-ing form
will I not stiff? will you not stiff? will she not stiff? will we not stiff? will you not stiff? will they not stiff?	will I not be stiffing? will you not be stiffing? will she not be stiffing? will we not be stiffing? will you not be stiffing? will they not be stiffing?
Perfect	V-ing perfect
will I not have stiffed? will you not have stiffed? will she not have stiffed? will we not have stiffed? will you not have stiffed? will they not have stiffed?	will I not have been stiffing? will you not have been stiffing? will she not have been stiffing? will we not have been stiffing? will you not have been stiffing? will they not have been stiffing?