English verb conjugation
MUST FORGO

Regular verb: forgo - forgoed - forgoed

Affirmation

Simple form	V-ing form
I must forgo you must forgo he must forgo we must forgo you must forgo they must forgo	I must be forgoing you must be forgoing he must be forgoing we must be forgoing you must be forgoing they must be forgoing
Perfect	V-ing perfect
I must have forgoed you must have forgoed he must have forgoed we must have forgoed you must have forgoed they must have forgoed	I must have been forgoing you must have been forgoing he must have been forgoing we must have been forgoing you must have been forgoing they must have been forgoing

Negation

Simple form	V-ing form
I mustn't forgo you mustn't forgo he mustn't forgo we mustn't forgo you mustn't forgo they mustn't forgo	I mustn't be forgoing you mustn't be forgoing he mustn't be forgoing we mustn't be forgoing you mustn't be forgoing they mustn't be forgoing
Perfect	V-ing perfect
I mustn't have forgoed you mustn't have forgoed he mustn't have forgoed we mustn't have forgoed you mustn't have forgoed they mustn't have forgoed	I mustn't have been forgoing you mustn't have been forgoing he mustn't have been forgoing we mustn't have been forgoing you mustn't have been forgoing they mustn't have been forgoing

Interrogative form

Simple form	V-ing form
must I forgo? must you forgo? must he forgo? must we forgo? must you forgo? must they forgo?	must I be forgoing? must you be forgoing? must he be forgoing? must we be forgoing? must you be forgoing? must they be forgoing?
Perfect	V-ing perfect
must I have forgoed? must you have forgoed? must he have forgoed? must we have forgoed? must you have forgoed? must they have forgoed?	must I have been forgoing? must you have been forgoing? must he have been forgoing? must we have been forgoing? must you have been forgoing? must they have been forgoing?

Interro-negative form

Simple form	V-ing form
mustn't I forgo? mustn't you forgo? mustn't he forgo? mustn't we forgo? mustn't you forgo? mustn't they forgo?	mustn't I be forgoing? mustn't you be forgoing? mustn't he be forgoing? mustn't we be forgoing? mustn't you be forgoing? mustn't they be forgoing?
Perfect	V-ing perfect
mustn't I have forgoed? mustn't you have forgoed? mustn't he have forgoed? mustn't we have forgoed? mustn't you have forgoed? mustn't they have forgoed?	mustn't I have been forgoing? mustn't you have been forgoing? mustn't he have been forgoing? mustn't we have been forgoing? mustn't you have been forgoing? mustn't they have been forgoing?