English verb conjugation
MUST LUCK

Regular verb: luck - lucked - lucked

Affirmation

Simple form	V-ing form
I must luck you must luck he must luck we must luck you must luck they must luck	I must be lucking you must be lucking he must be lucking we must be lucking you must be lucking they must be lucking
Perfect	V-ing perfect
I must have lucked you must have lucked he must have lucked we must have lucked you must have lucked they must have lucked	I must have been lucking you must have been lucking he must have been lucking we must have been lucking you must have been lucking they must have been lucking

Negation

Simple form	V-ing form
I mustn't luck you mustn't luck he mustn't luck we mustn't luck you mustn't luck they mustn't luck	I mustn't be lucking you mustn't be lucking he mustn't be lucking we mustn't be lucking you mustn't be lucking they mustn't be lucking
Perfect	V-ing perfect
I mustn't have lucked you mustn't have lucked he mustn't have lucked we mustn't have lucked you mustn't have lucked they mustn't have lucked	I mustn't have been lucking you mustn't have been lucking he mustn't have been lucking we mustn't have been lucking you mustn't have been lucking they mustn't have been lucking

Interrogative form

Simple form	V-ing form
must I luck? must you luck? must he luck? must we luck? must you luck? must they luck?	must I be lucking? must you be lucking? must he be lucking? must we be lucking? must you be lucking? must they be lucking?
Perfect	V-ing perfect
must I have lucked? must you have lucked? must he have lucked? must we have lucked? must you have lucked? must they have lucked?	must I have been lucking? must you have been lucking? must he have been lucking? must we have been lucking? must you have been lucking? must they have been lucking?

Interro-negative form

Simple form	V-ing form
mustn't I luck? mustn't you luck? mustn't he luck? mustn't we luck? mustn't you luck? mustn't they luck?	mustn't I be lucking? mustn't you be lucking? mustn't he be lucking? mustn't we be lucking? mustn't you be lucking? mustn't they be lucking?
Perfect	V-ing perfect
mustn't I have lucked? mustn't you have lucked? mustn't he have lucked? mustn't we have lucked? mustn't you have lucked? mustn't they have lucked?	mustn't I have been lucking? mustn't you have been lucking? mustn't he have been lucking? mustn't we have been lucking? mustn't you have been lucking? mustn't they have been lucking?