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 must not lek you must not lek he must not lek we must not lek you must not lek they must not lek	I must not be leking you must not be leking he must not be leking we must not be leking you must not be leking they must not be leking
Perfect	V-ing perfect
I must not have leked you must not have leked he must not have leked we must not have leked you must not have leked they must not have leked	I must not have been leking you must not have been leking he must not have been leking we must not have been leking you must not have been leking they must not 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
must I not lek? must you not lek? must he not lek? must we not lek? must you not lek? must they not lek?	must I not be leking? must you not be leking? must he not be leking? must we not be leking? must you not be leking? must they not be leking?
Perfect	V-ing perfect
must I not have leked? must you not have leked? must he not have leked? must we not have leked? must you not have leked? must they not have leked?	must I not have been leking? must you not have been leking? must he not have been leking? must we not have been leking? must you not have been leking? must they not have been leking?