English verb conjugation
MUST CATER

Regular verb: cater - catered - catered

Affirmation

Simple form	V-ing form
I must cater you must cater he must cater we must cater you must cater they must cater	I must be catering you must be catering he must be catering we must be catering you must be catering they must be catering
Perfect	V-ing perfect
I must have catered you must have catered he must have catered we must have catered you must have catered they must have catered	I must have been catering you must have been catering he must have been catering we must have been catering you must have been catering they must have been catering

Negation

Simple form	V-ing form
I must not cater you must not cater he must not cater we must not cater you must not cater they must not cater	I must not be catering you must not be catering he must not be catering we must not be catering you must not be catering they must not be catering
Perfect	V-ing perfect
I must not have catered you must not have catered he must not have catered we must not have catered you must not have catered they must not have catered	I must not have been catering you must not have been catering he must not have been catering we must not have been catering you must not have been catering they must not have been catering

Interrogative form

Simple form	V-ing form
must I cater? must you cater? must he cater? must we cater? must you cater? must they cater?	must I be catering? must you be catering? must he be catering? must we be catering? must you be catering? must they be catering?
Perfect	V-ing perfect
must I have catered? must you have catered? must he have catered? must we have catered? must you have catered? must they have catered?	must I have been catering? must you have been catering? must he have been catering? must we have been catering? must you have been catering? must they have been catering?

Interro-negative form

Simple form	V-ing form
must I not cater? must you not cater? must he not cater? must we not cater? must you not cater? must they not cater?	must I not be catering? must you not be catering? must he not be catering? must we not be catering? must you not be catering? must they not be catering?
Perfect	V-ing perfect
must I not have catered? must you not have catered? must he not have catered? must we not have catered? must you not have catered? must they not have catered?	must I not have been catering? must you not have been catering? must he not have been catering? must we not have been catering? must you not have been catering? must they not have been catering?