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 mustn't occasion you mustn't occasion he mustn't occasion we mustn't occasion you mustn't occasion they mustn't occasion	I mustn't be occasioning you mustn't be occasioning he mustn't be occasioning we mustn't be occasioning you mustn't be occasioning they mustn't be occasioning
Perfect	V-ing perfect
I mustn't have occasioned you mustn't have occasioned he mustn't have occasioned we mustn't have occasioned you mustn't have occasioned they mustn't have occasioned	I mustn't have been occasioning you mustn't have been occasioning he mustn't have been occasioning we mustn't have been occasioning you mustn't have been occasioning they mustn't 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
mustn't I occasion? mustn't you occasion? mustn't he occasion? mustn't we occasion? mustn't you occasion? mustn't they occasion?	mustn't I be occasioning? mustn't you be occasioning? mustn't he be occasioning? mustn't we be occasioning? mustn't you be occasioning? mustn't they be occasioning?
Perfect	V-ing perfect
mustn't I have occasioned? mustn't you have occasioned? mustn't he have occasioned? mustn't we have occasioned? mustn't you have occasioned? mustn't they have occasioned?	mustn't I have been occasioning? mustn't you have been occasioning? mustn't he have been occasioning? mustn't we have been occasioning? mustn't you have been occasioning? mustn't they have been occasioning?