English verb conjugation
MUST SWIVEL

Regular verb: swivel - swivelled - swivelled

Affirmation

Simple form	V-ing form
I must swivel you must swivel he must swivel we must swivel you must swivel they must swivel	I must be swivelling you must be swivelling he must be swivelling we must be swivelling you must be swivelling they must be swivelling
Perfect	V-ing perfect
I must have swivelled you must have swivelled he must have swivelled we must have swivelled you must have swivelled they must have swivelled	I must have been swivelling you must have been swivelling he must have been swivelling we must have been swivelling you must have been swivelling they must have been swivelling

Negation

Simple form	V-ing form
I must not swivel you must not swivel he must not swivel we must not swivel you must not swivel they must not swivel	I must not be swivelling you must not be swivelling he must not be swivelling we must not be swivelling you must not be swivelling they must not be swivelling
Perfect	V-ing perfect
I must not have swivelled you must not have swivelled he must not have swivelled we must not have swivelled you must not have swivelled they must not have swivelled	I must not have been swivelling you must not have been swivelling he must not have been swivelling we must not have been swivelling you must not have been swivelling they must not have been swivelling

Interrogative form

Simple form	V-ing form
must I swivel? must you swivel? must he swivel? must we swivel? must you swivel? must they swivel?	must I be swivelling? must you be swivelling? must he be swivelling? must we be swivelling? must you be swivelling? must they be swivelling?
Perfect	V-ing perfect
must I have swivelled? must you have swivelled? must he have swivelled? must we have swivelled? must you have swivelled? must they have swivelled?	must I have been swivelling? must you have been swivelling? must he have been swivelling? must we have been swivelling? must you have been swivelling? must they have been swivelling?

Interro-negative form

Simple form	V-ing form
must I not swivel? must you not swivel? must he not swivel? must we not swivel? must you not swivel? must they not swivel?	must I not be swivelling? must you not be swivelling? must he not be swivelling? must we not be swivelling? must you not be swivelling? must they not be swivelling?
Perfect	V-ing perfect
must I not have swivelled? must you not have swivelled? must he not have swivelled? must we not have swivelled? must you not have swivelled? must they not have swivelled?	must I not have been swivelling? must you not have been swivelling? must he not have been swivelling? must we not have been swivelling? must you not have been swivelling? must they not have been swivelling?