English verb conjugation
MUST SHRIVEL

Regular verb: shrivel - shrivelled - shrivelled

Affirmation

Simple form	V-ing form
I must shrivel you must shrivel he must shrivel we must shrivel you must shrivel they must shrivel	I must be shrivelling you must be shrivelling he must be shrivelling we must be shrivelling you must be shrivelling they must be shrivelling
Perfect	V-ing perfect
I must have shrivelled you must have shrivelled he must have shrivelled we must have shrivelled you must have shrivelled they must have shrivelled	I must have been shrivelling you must have been shrivelling he must have been shrivelling we must have been shrivelling you must have been shrivelling they must have been shrivelling

Negation

Simple form	V-ing form
I must not shrivel you must not shrivel he must not shrivel we must not shrivel you must not shrivel they must not shrivel	I must not be shrivelling you must not be shrivelling he must not be shrivelling we must not be shrivelling you must not be shrivelling they must not be shrivelling
Perfect	V-ing perfect
I must not have shrivelled you must not have shrivelled he must not have shrivelled we must not have shrivelled you must not have shrivelled they must not have shrivelled	I must not have been shrivelling you must not have been shrivelling he must not have been shrivelling we must not have been shrivelling you must not have been shrivelling they must not have been shrivelling

Interrogative form

Simple form	V-ing form
must I shrivel? must you shrivel? must he shrivel? must we shrivel? must you shrivel? must they shrivel?	must I be shrivelling? must you be shrivelling? must he be shrivelling? must we be shrivelling? must you be shrivelling? must they be shrivelling?
Perfect	V-ing perfect
must I have shrivelled? must you have shrivelled? must he have shrivelled? must we have shrivelled? must you have shrivelled? must they have shrivelled?	must I have been shrivelling? must you have been shrivelling? must he have been shrivelling? must we have been shrivelling? must you have been shrivelling? must they have been shrivelling?

Interro-negative form

Simple form	V-ing form
must I not shrivel? must you not shrivel? must he not shrivel? must we not shrivel? must you not shrivel? must they not shrivel?	must I not be shrivelling? must you not be shrivelling? must he not be shrivelling? must we not be shrivelling? must you not be shrivelling? must they not be shrivelling?
Perfect	V-ing perfect
must I not have shrivelled? must you not have shrivelled? must he not have shrivelled? must we not have shrivelled? must you not have shrivelled? must they not have shrivelled?	must I not have been shrivelling? must you not have been shrivelling? must he not have been shrivelling? must we not have been shrivelling? must you not have been shrivelling? must they not have been shrivelling?