English verb conjugation
MUST OCCASION

Regular verb: occasion - occasioned - occasioned

Affirmation

Simple form	V-ing form
I must occasion you must occasion he must occasion we must occasion you must occasion they must occasion	I must be occasioning you must be occasioning he must be occasioning we must be occasioning you must be occasioning they must be occasioning
Perfect	V-ing perfect
I must have occasioned you must have occasioned he must have occasioned we must have occasioned you must have occasioned they must have occasioned	I must have been occasioning you must have been occasioning he must have been occasioning we must have been occasioning you must have been occasioning they must have been occasioning

Negation

Simple form	V-ing form
I must not occasion you must not occasion he must not occasion we must not occasion you must not occasion they must not occasion	I must not be occasioning you must not be occasioning he must not be occasioning we must not be occasioning you must not be occasioning they must not be occasioning
Perfect	V-ing perfect
I must not have occasioned you must not have occasioned he must not have occasioned we must not have occasioned you must not have occasioned they must not have occasioned	I must not have been occasioning you must not have been occasioning he must not have been occasioning we must not have been occasioning you must not have been occasioning they must not have been occasioning

Interrogative form

Simple form	V-ing form
must I occasion? must you occasion? must he occasion? must we occasion? must you occasion? must they occasion?	must I be occasioning? must you be occasioning? must he be occasioning? must we be occasioning? must you be occasioning? must they be occasioning?
Perfect	V-ing perfect
must I have occasioned? must you have occasioned? must he have occasioned? must we have occasioned? must you have occasioned? must they have occasioned?	must I have been occasioning? must you have been occasioning? must he have been occasioning? must we have been occasioning? must you have been occasioning? must they have been occasioning?

Interro-negative form

Simple form	V-ing form
must I not occasion? must you not occasion? must he not occasion? must we not occasion? must you not occasion? must they not occasion?	must I not be occasioning? must you not be occasioning? must he not be occasioning? must we not be occasioning? must you not be occasioning? must they not be occasioning?
Perfect	V-ing perfect
must I not have occasioned? must you not have occasioned? must he not have occasioned? must we not have occasioned? must you not have occasioned? must they not have occasioned?	must I not have been occasioning? must you not have been occasioning? must he not have been occasioning? must we not have been occasioning? must you not have been occasioning? must they not have been occasioning?