English verb conjugation
MUST LAMB

Regular verb: lamb - lambed - lambed

Affirmation

Simple form	V-ing form
I must lamb you must lamb he must lamb we must lamb you must lamb they must lamb	I must be lambing you must be lambing he must be lambing we must be lambing you must be lambing they must be lambing
Perfect	V-ing perfect
I must have lambed you must have lambed he must have lambed we must have lambed you must have lambed they must have lambed	I must have been lambing you must have been lambing he must have been lambing we must have been lambing you must have been lambing they must have been lambing

Negation

Simple form	V-ing form
I mustn't lamb you mustn't lamb he mustn't lamb we mustn't lamb you mustn't lamb they mustn't lamb	I mustn't be lambing you mustn't be lambing he mustn't be lambing we mustn't be lambing you mustn't be lambing they mustn't be lambing
Perfect	V-ing perfect
I mustn't have lambed you mustn't have lambed he mustn't have lambed we mustn't have lambed you mustn't have lambed they mustn't have lambed	I mustn't have been lambing you mustn't have been lambing he mustn't have been lambing we mustn't have been lambing you mustn't have been lambing they mustn't have been lambing

Interrogative form

Simple form	V-ing form
must I lamb? must you lamb? must he lamb? must we lamb? must you lamb? must they lamb?	must I be lambing? must you be lambing? must he be lambing? must we be lambing? must you be lambing? must they be lambing?
Perfect	V-ing perfect
must I have lambed? must you have lambed? must he have lambed? must we have lambed? must you have lambed? must they have lambed?	must I have been lambing? must you have been lambing? must he have been lambing? must we have been lambing? must you have been lambing? must they have been lambing?

Interro-negative form

Simple form	V-ing form
mustn't I lamb? mustn't you lamb? mustn't he lamb? mustn't we lamb? mustn't you lamb? mustn't they lamb?	mustn't I be lambing? mustn't you be lambing? mustn't he be lambing? mustn't we be lambing? mustn't you be lambing? mustn't they be lambing?
Perfect	V-ing perfect
mustn't I have lambed? mustn't you have lambed? mustn't he have lambed? mustn't we have lambed? mustn't you have lambed? mustn't they have lambed?	mustn't I have been lambing? mustn't you have been lambing? mustn't he have been lambing? mustn't we have been lambing? mustn't you have been lambing? mustn't they have been lambing?