English verb conjugation
MUST ROOK

Regular verb: rook - rooked - rooked

Affirmation

Simple form	V-ing form
I must rook you must rook he must rook we must rook you must rook they must rook	I must be rooking you must be rooking he must be rooking we must be rooking you must be rooking they must be rooking
Perfect	V-ing perfect
I must have rooked you must have rooked he must have rooked we must have rooked you must have rooked they must have rooked	I must have been rooking you must have been rooking he must have been rooking we must have been rooking you must have been rooking they must have been rooking

Negation

Simple form	V-ing form
I mustn't rook you mustn't rook he mustn't rook we mustn't rook you mustn't rook they mustn't rook	I mustn't be rooking you mustn't be rooking he mustn't be rooking we mustn't be rooking you mustn't be rooking they mustn't be rooking
Perfect	V-ing perfect
I mustn't have rooked you mustn't have rooked he mustn't have rooked we mustn't have rooked you mustn't have rooked they mustn't have rooked	I mustn't have been rooking you mustn't have been rooking he mustn't have been rooking we mustn't have been rooking you mustn't have been rooking they mustn't have been rooking

Interrogative form

Simple form	V-ing form
must I rook? must you rook? must he rook? must we rook? must you rook? must they rook?	must I be rooking? must you be rooking? must he be rooking? must we be rooking? must you be rooking? must they be rooking?
Perfect	V-ing perfect
must I have rooked? must you have rooked? must he have rooked? must we have rooked? must you have rooked? must they have rooked?	must I have been rooking? must you have been rooking? must he have been rooking? must we have been rooking? must you have been rooking? must they have been rooking?

Interro-negative form

Simple form	V-ing form
mustn't I rook? mustn't you rook? mustn't he rook? mustn't we rook? mustn't you rook? mustn't they rook?	mustn't I be rooking? mustn't you be rooking? mustn't he be rooking? mustn't we be rooking? mustn't you be rooking? mustn't they be rooking?
Perfect	V-ing perfect
mustn't I have rooked? mustn't you have rooked? mustn't he have rooked? mustn't we have rooked? mustn't you have rooked? mustn't they have rooked?	mustn't I have been rooking? mustn't you have been rooking? mustn't he have been rooking? mustn't we have been rooking? mustn't you have been rooking? mustn't they have been rooking?