English verb conjugation
MUST FORERUN

Irregular verb: forerun - foreran - forerun

Affirmation

Simple form	V-ing form
I must forerun you must forerun she must forerun we must forerun you must forerun they must forerun	I must be foreruning you must be foreruning she 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 she 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 she 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 she 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 she 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 she 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 she 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 she forerun? must we forerun? must you forerun? must they forerun?	must I be foreruning? must you be foreruning? must she 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 she 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 she 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 she 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 she 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 she 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 she have been foreruning? mustn't we have been foreruning? mustn't you have been foreruning? mustn't they have been foreruning?