English verb conjugation
MUST LAM

Regular verb: lam - lammed - lammed

Affirmation

Simple form	V-ing form
I must lam you must lam he must lam we must lam you must lam they must lam	I must be lamming you must be lamming he must be lamming we must be lamming you must be lamming they must be lamming
Perfect	V-ing perfect
I must have lammed you must have lammed he must have lammed we must have lammed you must have lammed they must have lammed	I must have been lamming you must have been lamming he must have been lamming we must have been lamming you must have been lamming they must have been lamming

Negation

Simple form	V-ing form
I mustn't lam you mustn't lam he mustn't lam we mustn't lam you mustn't lam they mustn't lam	I mustn't be lamming you mustn't be lamming he mustn't be lamming we mustn't be lamming you mustn't be lamming they mustn't be lamming
Perfect	V-ing perfect
I mustn't have lammed you mustn't have lammed he mustn't have lammed we mustn't have lammed you mustn't have lammed they mustn't have lammed	I mustn't have been lamming you mustn't have been lamming he mustn't have been lamming we mustn't have been lamming you mustn't have been lamming they mustn't have been lamming

Interrogative form

Simple form	V-ing form
must I lam? must you lam? must he lam? must we lam? must you lam? must they lam?	must I be lamming? must you be lamming? must he be lamming? must we be lamming? must you be lamming? must they be lamming?
Perfect	V-ing perfect
must I have lammed? must you have lammed? must he have lammed? must we have lammed? must you have lammed? must they have lammed?	must I have been lamming? must you have been lamming? must he have been lamming? must we have been lamming? must you have been lamming? must they have been lamming?

Interro-negative form

Simple form	V-ing form
mustn't I lam? mustn't you lam? mustn't he lam? mustn't we lam? mustn't you lam? mustn't they lam?	mustn't I be lamming? mustn't you be lamming? mustn't he be lamming? mustn't we be lamming? mustn't you be lamming? mustn't they be lamming?
Perfect	V-ing perfect
mustn't I have lammed? mustn't you have lammed? mustn't he have lammed? mustn't we have lammed? mustn't you have lammed? mustn't they have lammed?	mustn't I have been lamming? mustn't you have been lamming? mustn't he have been lamming? mustn't we have been lamming? mustn't you have been lamming? mustn't they have been lamming?