English verb conjugation
MUST LEER

Regular verb: leer - leered - leered

Affirmation

Simple form	V-ing form
I must leer you must leer she must leer we must leer you must leer they must leer	I must be leering you must be leering she must be leering we must be leering you must be leering they must be leering
Perfect	V-ing perfect
I must have leered you must have leered she must have leered we must have leered you must have leered they must have leered	I must have been leering you must have been leering she must have been leering we must have been leering you must have been leering they must have been leering

Negation

Simple form	V-ing form
I mustn't leer you mustn't leer she mustn't leer we mustn't leer you mustn't leer they mustn't leer	I mustn't be leering you mustn't be leering she mustn't be leering we mustn't be leering you mustn't be leering they mustn't be leering
Perfect	V-ing perfect
I mustn't have leered you mustn't have leered she mustn't have leered we mustn't have leered you mustn't have leered they mustn't have leered	I mustn't have been leering you mustn't have been leering she mustn't have been leering we mustn't have been leering you mustn't have been leering they mustn't have been leering

Interrogative form

Simple form	V-ing form
must I leer? must you leer? must she leer? must we leer? must you leer? must they leer?	must I be leering? must you be leering? must she be leering? must we be leering? must you be leering? must they be leering?
Perfect	V-ing perfect
must I have leered? must you have leered? must she have leered? must we have leered? must you have leered? must they have leered?	must I have been leering? must you have been leering? must she have been leering? must we have been leering? must you have been leering? must they have been leering?

Interro-negative form

Simple form	V-ing form
mustn't I leer? mustn't you leer? mustn't she leer? mustn't we leer? mustn't you leer? mustn't they leer?	mustn't I be leering? mustn't you be leering? mustn't she be leering? mustn't we be leering? mustn't you be leering? mustn't they be leering?
Perfect	V-ing perfect
mustn't I have leered? mustn't you have leered? mustn't she have leered? mustn't we have leered? mustn't you have leered? mustn't they have leered?	mustn't I have been leering? mustn't you have been leering? mustn't she have been leering? mustn't we have been leering? mustn't you have been leering? mustn't they have been leering?