English verb conjugation
MUST SLAB

Regular verb: slab - slabed - slabed

Affirmation

Simple form	V-ing form
I must slab you must slab he must slab we must slab you must slab they must slab	I must be slabing you must be slabing he must be slabing we must be slabing you must be slabing they must be slabing
Perfect	V-ing perfect
I must have slabed you must have slabed he must have slabed we must have slabed you must have slabed they must have slabed	I must have been slabing you must have been slabing he must have been slabing we must have been slabing you must have been slabing they must have been slabing

Negation

Simple form	V-ing form
I mustn't slab you mustn't slab he mustn't slab we mustn't slab you mustn't slab they mustn't slab	I mustn't be slabing you mustn't be slabing he mustn't be slabing we mustn't be slabing you mustn't be slabing they mustn't be slabing
Perfect	V-ing perfect
I mustn't have slabed you mustn't have slabed he mustn't have slabed we mustn't have slabed you mustn't have slabed they mustn't have slabed	I mustn't have been slabing you mustn't have been slabing he mustn't have been slabing we mustn't have been slabing you mustn't have been slabing they mustn't have been slabing

Interrogative form

Simple form	V-ing form
must I slab? must you slab? must he slab? must we slab? must you slab? must they slab?	must I be slabing? must you be slabing? must he be slabing? must we be slabing? must you be slabing? must they be slabing?
Perfect	V-ing perfect
must I have slabed? must you have slabed? must he have slabed? must we have slabed? must you have slabed? must they have slabed?	must I have been slabing? must you have been slabing? must he have been slabing? must we have been slabing? must you have been slabing? must they have been slabing?

Interro-negative form

Simple form	V-ing form
mustn't I slab? mustn't you slab? mustn't he slab? mustn't we slab? mustn't you slab? mustn't they slab?	mustn't I be slabing? mustn't you be slabing? mustn't he be slabing? mustn't we be slabing? mustn't you be slabing? mustn't they be slabing?
Perfect	V-ing perfect
mustn't I have slabed? mustn't you have slabed? mustn't he have slabed? mustn't we have slabed? mustn't you have slabed? mustn't they have slabed?	mustn't I have been slabing? mustn't you have been slabing? mustn't he have been slabing? mustn't we have been slabing? mustn't you have been slabing? mustn't they have been slabing?