English verb conjugation
MUST CLOWN

Regular verb: clown - clowned - clowned

Affirmation

Simple form	V-ing form
I must clown you must clown he must clown we must clown you must clown they must clown	I must be clowning you must be clowning he must be clowning we must be clowning you must be clowning they must be clowning
Perfect	V-ing perfect
I must have clowned you must have clowned he must have clowned we must have clowned you must have clowned they must have clowned	I must have been clowning you must have been clowning he must have been clowning we must have been clowning you must have been clowning they must have been clowning

Negation

Simple form	V-ing form
I mustn't clown you mustn't clown he mustn't clown we mustn't clown you mustn't clown they mustn't clown	I mustn't be clowning you mustn't be clowning he mustn't be clowning we mustn't be clowning you mustn't be clowning they mustn't be clowning
Perfect	V-ing perfect
I mustn't have clowned you mustn't have clowned he mustn't have clowned we mustn't have clowned you mustn't have clowned they mustn't have clowned	I mustn't have been clowning you mustn't have been clowning he mustn't have been clowning we mustn't have been clowning you mustn't have been clowning they mustn't have been clowning

Interrogative form

Simple form	V-ing form
must I clown? must you clown? must he clown? must we clown? must you clown? must they clown?	must I be clowning? must you be clowning? must he be clowning? must we be clowning? must you be clowning? must they be clowning?
Perfect	V-ing perfect
must I have clowned? must you have clowned? must he have clowned? must we have clowned? must you have clowned? must they have clowned?	must I have been clowning? must you have been clowning? must he have been clowning? must we have been clowning? must you have been clowning? must they have been clowning?

Interro-negative form

Simple form	V-ing form
mustn't I clown? mustn't you clown? mustn't he clown? mustn't we clown? mustn't you clown? mustn't they clown?	mustn't I be clowning? mustn't you be clowning? mustn't he be clowning? mustn't we be clowning? mustn't you be clowning? mustn't they be clowning?
Perfect	V-ing perfect
mustn't I have clowned? mustn't you have clowned? mustn't he have clowned? mustn't we have clowned? mustn't you have clowned? mustn't they have clowned?	mustn't I have been clowning? mustn't you have been clowning? mustn't he have been clowning? mustn't we have been clowning? mustn't you have been clowning? mustn't they have been clowning?