English verb conjugation
MUST CLAP

Regular verb: clap - clapped - clapped

Affirmation

Simple form	V-ing form
I must clap you must clap he must clap we must clap you must clap they must clap	I must be clapping you must be clapping he must be clapping we must be clapping you must be clapping they must be clapping
Perfect	V-ing perfect
I must have clapped you must have clapped he must have clapped we must have clapped you must have clapped they must have clapped	I must have been clapping you must have been clapping he must have been clapping we must have been clapping you must have been clapping they must have been clapping

Negation

Simple form	V-ing form
I mustn't clap you mustn't clap he mustn't clap we mustn't clap you mustn't clap they mustn't clap	I mustn't be clapping you mustn't be clapping he mustn't be clapping we mustn't be clapping you mustn't be clapping they mustn't be clapping
Perfect	V-ing perfect
I mustn't have clapped you mustn't have clapped he mustn't have clapped we mustn't have clapped you mustn't have clapped they mustn't have clapped	I mustn't have been clapping you mustn't have been clapping he mustn't have been clapping we mustn't have been clapping you mustn't have been clapping they mustn't have been clapping

Interrogative form

Simple form	V-ing form
must I clap? must you clap? must he clap? must we clap? must you clap? must they clap?	must I be clapping? must you be clapping? must he be clapping? must we be clapping? must you be clapping? must they be clapping?
Perfect	V-ing perfect
must I have clapped? must you have clapped? must he have clapped? must we have clapped? must you have clapped? must they have clapped?	must I have been clapping? must you have been clapping? must he have been clapping? must we have been clapping? must you have been clapping? must they have been clapping?

Interro-negative form

Simple form	V-ing form
mustn't I clap? mustn't you clap? mustn't he clap? mustn't we clap? mustn't you clap? mustn't they clap?	mustn't I be clapping? mustn't you be clapping? mustn't he be clapping? mustn't we be clapping? mustn't you be clapping? mustn't they be clapping?
Perfect	V-ing perfect
mustn't I have clapped? mustn't you have clapped? mustn't he have clapped? mustn't we have clapped? mustn't you have clapped? mustn't they have clapped?	mustn't I have been clapping? mustn't you have been clapping? mustn't he have been clapping? mustn't we have been clapping? mustn't you have been clapping? mustn't they have been clapping?