English verb conjugation
MUST LEK

Regular verb: lek - leked - leked

Affirmation

Simple form	V-ing form
I must lek you must lek he must lek we must lek you must lek they must lek	I must be leking you must be leking he must be leking we must be leking you must be leking they must be leking
Perfect	V-ing perfect
I must have leked you must have leked he must have leked we must have leked you must have leked they must have leked	I must have been leking you must have been leking he must have been leking we must have been leking you must have been leking they must have been leking

Negation

Simple form	V-ing form
I mustn't lek you mustn't lek he mustn't lek we mustn't lek you mustn't lek they mustn't lek	I mustn't be leking you mustn't be leking he mustn't be leking we mustn't be leking you mustn't be leking they mustn't be leking
Perfect	V-ing perfect
I mustn't have leked you mustn't have leked he mustn't have leked we mustn't have leked you mustn't have leked they mustn't have leked	I mustn't have been leking you mustn't have been leking he mustn't have been leking we mustn't have been leking you mustn't have been leking they mustn't have been leking

Interrogative form

Simple form	V-ing form
must I lek? must you lek? must he lek? must we lek? must you lek? must they lek?	must I be leking? must you be leking? must he be leking? must we be leking? must you be leking? must they be leking?
Perfect	V-ing perfect
must I have leked? must you have leked? must he have leked? must we have leked? must you have leked? must they have leked?	must I have been leking? must you have been leking? must he have been leking? must we have been leking? must you have been leking? must they have been leking?

Interro-negative form

Simple form	V-ing form
mustn't I lek? mustn't you lek? mustn't he lek? mustn't we lek? mustn't you lek? mustn't they lek?	mustn't I be leking? mustn't you be leking? mustn't he be leking? mustn't we be leking? mustn't you be leking? mustn't they be leking?
Perfect	V-ing perfect
mustn't I have leked? mustn't you have leked? mustn't he have leked? mustn't we have leked? mustn't you have leked? mustn't they have leked?	mustn't I have been leking? mustn't you have been leking? mustn't he have been leking? mustn't we have been leking? mustn't you have been leking? mustn't they have been leking?