English verb conjugation
MUST DEFORM

Regular verb: deform - deformed - deformed

Affirmation

Simple form	V-ing form
I must deform you must deform she must deform we must deform you must deform they must deform	I must be deforming you must be deforming she must be deforming we must be deforming you must be deforming they must be deforming
Perfect	V-ing perfect
I must have deformed you must have deformed she must have deformed we must have deformed you must have deformed they must have deformed	I must have been deforming you must have been deforming she must have been deforming we must have been deforming you must have been deforming they must have been deforming

Negation

Simple form	V-ing form
I must not deform you must not deform she must not deform we must not deform you must not deform they must not deform	I must not be deforming you must not be deforming she must not be deforming we must not be deforming you must not be deforming they must not be deforming
Perfect	V-ing perfect
I must not have deformed you must not have deformed she must not have deformed we must not have deformed you must not have deformed they must not have deformed	I must not have been deforming you must not have been deforming she must not have been deforming we must not have been deforming you must not have been deforming they must not have been deforming

Interrogative form

Simple form	V-ing form
must I deform? must you deform? must she deform? must we deform? must you deform? must they deform?	must I be deforming? must you be deforming? must she be deforming? must we be deforming? must you be deforming? must they be deforming?
Perfect	V-ing perfect
must I have deformed? must you have deformed? must she have deformed? must we have deformed? must you have deformed? must they have deformed?	must I have been deforming? must you have been deforming? must she have been deforming? must we have been deforming? must you have been deforming? must they have been deforming?

Interro-negative form

Simple form	V-ing form
must I not deform? must you not deform? must she not deform? must we not deform? must you not deform? must they not deform?	must I not be deforming? must you not be deforming? must she not be deforming? must we not be deforming? must you not be deforming? must they not be deforming?
Perfect	V-ing perfect
must I not have deformed? must you not have deformed? must she not have deformed? must we not have deformed? must you not have deformed? must they not have deformed?	must I not have been deforming? must you not have been deforming? must she not have been deforming? must we not have been deforming? must you not have been deforming? must they not have been deforming?