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 must not clap you must not clap he must not clap we must not clap you must not clap they must not clap	I must not be clapping you must not be clapping he must not be clapping we must not be clapping you must not be clapping they must not be clapping
Perfect	V-ing perfect
I must not have clapped you must not have clapped he must not have clapped we must not have clapped you must not have clapped they must not have clapped	I must not have been clapping you must not have been clapping he must not have been clapping we must not have been clapping you must not have been clapping they must not 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
must I not clap? must you not clap? must he not clap? must we not clap? must you not clap? must they not clap?	must I not be clapping? must you not be clapping? must he not be clapping? must we not be clapping? must you not be clapping? must they not be clapping?
Perfect	V-ing perfect
must I not have clapped? must you not have clapped? must he not have clapped? must we not have clapped? must you not have clapped? must they not have clapped?	must I not have been clapping? must you not have been clapping? must he not have been clapping? must we not have been clapping? must you not have been clapping? must they not have been clapping?