English verb conjugation
MUST FORERUN

Irregular verb: forerun - foreran - forerun

Affirmation

Simple form	V-ing form
I must forerun you must forerun he must forerun we must forerun you must forerun they must forerun	I must be foreruning you must be foreruning he must be foreruning we must be foreruning you must be foreruning they must be foreruning
Perfect	V-ing perfect
I must have forerun you must have forerun he must have forerun we must have forerun you must have forerun they must have forerun	I must have been foreruning you must have been foreruning he must have been foreruning we must have been foreruning you must have been foreruning they must have been foreruning

Negation

Simple form	V-ing form
I mustn't forerun you mustn't forerun he mustn't forerun we mustn't forerun you mustn't forerun they mustn't forerun	I mustn't be foreruning you mustn't be foreruning he mustn't be foreruning we mustn't be foreruning you mustn't be foreruning they mustn't be foreruning
Perfect	V-ing perfect
I mustn't have forerun you mustn't have forerun he mustn't have forerun we mustn't have forerun you mustn't have forerun they mustn't have forerun	I mustn't have been foreruning you mustn't have been foreruning he mustn't have been foreruning we mustn't have been foreruning you mustn't have been foreruning they mustn't have been foreruning

Interrogative form

Simple form	V-ing form
must I forerun? must you forerun? must he forerun? must we forerun? must you forerun? must they forerun?	must I be foreruning? must you be foreruning? must he be foreruning? must we be foreruning? must you be foreruning? must they be foreruning?
Perfect	V-ing perfect
must I have forerun? must you have forerun? must he have forerun? must we have forerun? must you have forerun? must they have forerun?	must I have been foreruning? must you have been foreruning? must he have been foreruning? must we have been foreruning? must you have been foreruning? must they have been foreruning?

Interro-negative form

Simple form	V-ing form
mustn't I forerun? mustn't you forerun? mustn't he forerun? mustn't we forerun? mustn't you forerun? mustn't they forerun?	mustn't I be foreruning? mustn't you be foreruning? mustn't he be foreruning? mustn't we be foreruning? mustn't you be foreruning? mustn't they be foreruning?
Perfect	V-ing perfect
mustn't I have forerun? mustn't you have forerun? mustn't he have forerun? mustn't we have forerun? mustn't you have forerun? mustn't they have forerun?	mustn't I have been foreruning? mustn't you have been foreruning? mustn't he have been foreruning? mustn't we have been foreruning? mustn't you have been foreruning? mustn't they have been foreruning?