must cater
Regular verb: cater - catered- catered

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