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 must not slab you must not slab he must not slab we must not slab you must not slab they must not slab	I must not be slabing you must not be slabing he must not be slabing we must not be slabing you must not be slabing they must not be slabing
Perfect	V-ing perfect
I must not have slabed you must not have slabed he must not have slabed we must not have slabed you must not have slabed they must not have slabed	I must not have been slabing you must not have been slabing he must not have been slabing we must not have been slabing you must not have been slabing they must not 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
must I not slab? must you not slab? must he not slab? must we not slab? must you not slab? must they not slab?	must I not be slabing? must you not be slabing? must he not be slabing? must we not be slabing? must you not be slabing? must they not be slabing?
Perfect	V-ing perfect
must I not have slabed? must you not have slabed? must he not have slabed? must we not have slabed? must you not have slabed? must they not have slabed?	must I not have been slabing? must you not have been slabing? must he not have been slabing? must we not have been slabing? must you not have been slabing? must they not have been slabing?