English verb conjugation
SHALL FESTER

Regular verb: fester - festered - festered

Affirmation

Simple form	V-ing form
I shall fester you shall fester she shall fester we shall fester you shall fester they shall fester	I shall be festering you shall be festering she shall be festering we shall be festering you shall be festering they shall be festering
Perfect	V-ing perfect
I shall have festered you shall have festered she shall have festered we shall have festered you shall have festered they shall have festered	I shall have been festering you shall have been festering she shall have been festering we shall have been festering you shall have been festering they shall have been festering

Negation

Simple form	V-ing form
I shall not fester you shall not fester she shall not fester we shall not fester you shall not fester they shall not fester	I shall not be festering you shall not be festering she shall not be festering we shall not be festering you shall not be festering they shall not be festering
Perfect	V-ing perfect
I shall not have festered you shall not have festered she shall not have festered we shall not have festered you shall not have festered they shall not have festered	I shall not have been festering you shall not have been festering she shall not have been festering we shall not have been festering you shall not have been festering they shall not have been festering

Interrogative form

Simple form	V-ing form
shall I fester? shall you fester? shall she fester? shall we fester? shall you fester? shall they fester?	shall I be festering? shall you be festering? shall she be festering? shall we be festering? shall you be festering? shall they be festering?
Perfect	V-ing perfect
shall I have festered? shall you have festered? shall she have festered? shall we have festered? shall you have festered? shall they have festered?	shall I have been festering? shall you have been festering? shall she have been festering? shall we have been festering? shall you have been festering? shall they have been festering?

Interro-negative form

Simple form	V-ing form
shall I not fester? shall you not fester? shall she not fester? shall we not fester? shall you not fester? shall they not fester?	shall I not be festering? shall you not be festering? shall she not be festering? shall we not be festering? shall you not be festering? shall they not be festering?
Perfect	V-ing perfect
shall I not have festered? shall you not have festered? shall she not have festered? shall we not have festered? shall you not have festered? shall they not have festered?	shall I not have been festering? shall you not have been festering? shall she not have been festering? shall we not have been festering? shall you not have been festering? shall they not have been festering?