English verb conjugation
MUST DEFINE

Regular verb: define - defined - defined

Affirmation

Simple form	V-ing form
I must define you must define he must define we must define you must define they must define	I must be defining you must be defining he must be defining we must be defining you must be defining they must be defining
Perfect	V-ing perfect
I must have defined you must have defined he must have defined we must have defined you must have defined they must have defined	I must have been defining you must have been defining he must have been defining we must have been defining you must have been defining they must have been defining

Negation

Simple form	V-ing form
I mustn't define you mustn't define he mustn't define we mustn't define you mustn't define they mustn't define	I mustn't be defining you mustn't be defining he mustn't be defining we mustn't be defining you mustn't be defining they mustn't be defining
Perfect	V-ing perfect
I mustn't have defined you mustn't have defined he mustn't have defined we mustn't have defined you mustn't have defined they mustn't have defined	I mustn't have been defining you mustn't have been defining he mustn't have been defining we mustn't have been defining you mustn't have been defining they mustn't have been defining

Interrogative form

Simple form	V-ing form
must I define? must you define? must he define? must we define? must you define? must they define?	must I be defining? must you be defining? must he be defining? must we be defining? must you be defining? must they be defining?
Perfect	V-ing perfect
must I have defined? must you have defined? must he have defined? must we have defined? must you have defined? must they have defined?	must I have been defining? must you have been defining? must he have been defining? must we have been defining? must you have been defining? must they have been defining?

Interro-negative form

Simple form	V-ing form
mustn't I define? mustn't you define? mustn't he define? mustn't we define? mustn't you define? mustn't they define?	mustn't I be defining? mustn't you be defining? mustn't he be defining? mustn't we be defining? mustn't you be defining? mustn't they be defining?
Perfect	V-ing perfect
mustn't I have defined? mustn't you have defined? mustn't he have defined? mustn't we have defined? mustn't you have defined? mustn't they have defined?	mustn't I have been defining? mustn't you have been defining? mustn't he have been defining? mustn't we have been defining? mustn't you have been defining? mustn't they have been defining?