English verb conjugation
MUST CATER

Regular verb: cater - catered - catered

Affirmation

Simple form	V-ing form
I must cater you must cater she must cater we must cater you must cater they must cater	I must be catering you must be catering she 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 she 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 she 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 mustn't cater you mustn't cater she mustn't cater we mustn't cater you mustn't cater they mustn't cater	I mustn't be catering you mustn't be catering she mustn't be catering we mustn't be catering you mustn't be catering they mustn't be catering
Perfect	V-ing perfect
I mustn't have catered you mustn't have catered she mustn't have catered we mustn't have catered you mustn't have catered they mustn't have catered	I mustn't have been catering you mustn't have been catering she mustn't have been catering we mustn't have been catering you mustn't have been catering they mustn't have been catering

Interrogative form

Simple form	V-ing form
must I cater? must you cater? must she cater? must we cater? must you cater? must they cater?	must I be catering? must you be catering? must she 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 she 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 she 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
mustn't I cater? mustn't you cater? mustn't she cater? mustn't we cater? mustn't you cater? mustn't they cater?	mustn't I be catering? mustn't you be catering? mustn't she be catering? mustn't we be catering? mustn't you be catering? mustn't they be catering?
Perfect	V-ing perfect
mustn't I have catered? mustn't you have catered? mustn't she have catered? mustn't we have catered? mustn't you have catered? mustn't they have catered?	mustn't I have been catering? mustn't you have been catering? mustn't she have been catering? mustn't we have been catering? mustn't you have been catering? mustn't they have been catering?