English verb conjugation
MUST CANTER

Regular verb: canter - cantered - cantered

Affirmation

Simple form	V-ing form
I must canter you must canter he must canter we must canter you must canter they must canter	I must be cantering you must be cantering he must be cantering we must be cantering you must be cantering they must be cantering
Perfect	V-ing perfect
I must have cantered you must have cantered he must have cantered we must have cantered you must have cantered they must have cantered	I must have been cantering you must have been cantering he must have been cantering we must have been cantering you must have been cantering they must have been cantering

Negation

Simple form	V-ing form
I mustn't canter you mustn't canter he mustn't canter we mustn't canter you mustn't canter they mustn't canter	I mustn't be cantering you mustn't be cantering he mustn't be cantering we mustn't be cantering you mustn't be cantering they mustn't be cantering
Perfect	V-ing perfect
I mustn't have cantered you mustn't have cantered he mustn't have cantered we mustn't have cantered you mustn't have cantered they mustn't have cantered	I mustn't have been cantering you mustn't have been cantering he mustn't have been cantering we mustn't have been cantering you mustn't have been cantering they mustn't have been cantering

Interrogative form

Simple form	V-ing form
must I canter? must you canter? must he canter? must we canter? must you canter? must they canter?	must I be cantering? must you be cantering? must he be cantering? must we be cantering? must you be cantering? must they be cantering?
Perfect	V-ing perfect
must I have cantered? must you have cantered? must he have cantered? must we have cantered? must you have cantered? must they have cantered?	must I have been cantering? must you have been cantering? must he have been cantering? must we have been cantering? must you have been cantering? must they have been cantering?

Interro-negative form

Simple form	V-ing form
mustn't I canter? mustn't you canter? mustn't he canter? mustn't we canter? mustn't you canter? mustn't they canter?	mustn't I be cantering? mustn't you be cantering? mustn't he be cantering? mustn't we be cantering? mustn't you be cantering? mustn't they be cantering?
Perfect	V-ing perfect
mustn't I have cantered? mustn't you have cantered? mustn't he have cantered? mustn't we have cantered? mustn't you have cantered? mustn't they have cantered?	mustn't I have been cantering? mustn't you have been cantering? mustn't he have been cantering? mustn't we have been cantering? mustn't you have been cantering? mustn't they have been cantering?