English verb conjugation
MUST FLAW

Regular verb: flaw - flawed - flawed

Affirmation

Simple form	V-ing form
I must flaw you must flaw he must flaw we must flaw you must flaw they must flaw	I must be flawing you must be flawing he must be flawing we must be flawing you must be flawing they must be flawing
Perfect	V-ing perfect
I must have flawed you must have flawed he must have flawed we must have flawed you must have flawed they must have flawed	I must have been flawing you must have been flawing he must have been flawing we must have been flawing you must have been flawing they must have been flawing

Negation

Simple form	V-ing form
I mustn't flaw you mustn't flaw he mustn't flaw we mustn't flaw you mustn't flaw they mustn't flaw	I mustn't be flawing you mustn't be flawing he mustn't be flawing we mustn't be flawing you mustn't be flawing they mustn't be flawing
Perfect	V-ing perfect
I mustn't have flawed you mustn't have flawed he mustn't have flawed we mustn't have flawed you mustn't have flawed they mustn't have flawed	I mustn't have been flawing you mustn't have been flawing he mustn't have been flawing we mustn't have been flawing you mustn't have been flawing they mustn't have been flawing

Interrogative form

Simple form	V-ing form
must I flaw? must you flaw? must he flaw? must we flaw? must you flaw? must they flaw?	must I be flawing? must you be flawing? must he be flawing? must we be flawing? must you be flawing? must they be flawing?
Perfect	V-ing perfect
must I have flawed? must you have flawed? must he have flawed? must we have flawed? must you have flawed? must they have flawed?	must I have been flawing? must you have been flawing? must he have been flawing? must we have been flawing? must you have been flawing? must they have been flawing?

Interro-negative form

Simple form	V-ing form
mustn't I flaw? mustn't you flaw? mustn't he flaw? mustn't we flaw? mustn't you flaw? mustn't they flaw?	mustn't I be flawing? mustn't you be flawing? mustn't he be flawing? mustn't we be flawing? mustn't you be flawing? mustn't they be flawing?
Perfect	V-ing perfect
mustn't I have flawed? mustn't you have flawed? mustn't he have flawed? mustn't we have flawed? mustn't you have flawed? mustn't they have flawed?	mustn't I have been flawing? mustn't you have been flawing? mustn't he have been flawing? mustn't we have been flawing? mustn't you have been flawing? mustn't they have been flawing?