English verb conjugation
MUST LEAD

Irregular verb: lead - led - led

Affirmation

Simple form	V-ing form
I must lead you must lead he must lead we must lead you must lead they must lead	I must be leading you must be leading he must be leading we must be leading you must be leading they must be leading
Perfect	V-ing perfect
I must have led you must have led he must have led we must have led you must have led they must have led	I must have been leading you must have been leading he must have been leading we must have been leading you must have been leading they must have been leading

Negation

Simple form	V-ing form
I must not lead you must not lead he must not lead we must not lead you must not lead they must not lead	I must not be leading you must not be leading he must not be leading we must not be leading you must not be leading they must not be leading
Perfect	V-ing perfect
I must not have led you must not have led he must not have led we must not have led you must not have led they must not have led	I must not have been leading you must not have been leading he must not have been leading we must not have been leading you must not have been leading they must not have been leading

Interrogative form

Simple form	V-ing form
must I lead? must you lead? must he lead? must we lead? must you lead? must they lead?	must I be leading? must you be leading? must he be leading? must we be leading? must you be leading? must they be leading?
Perfect	V-ing perfect
must I have led? must you have led? must he have led? must we have led? must you have led? must they have led?	must I have been leading? must you have been leading? must he have been leading? must we have been leading? must you have been leading? must they have been leading?

Interro-negative form

Simple form	V-ing form
must I not lead? must you not lead? must he not lead? must we not lead? must you not lead? must they not lead?	must I not be leading? must you not be leading? must he not be leading? must we not be leading? must you not be leading? must they not be leading?
Perfect	V-ing perfect
must I not have led? must you not have led? must he not have led? must we not have led? must you not have led? must they not have led?	must I not have been leading? must you not have been leading? must he not have been leading? must we not have been leading? must you not have been leading? must they not have been leading?