English verb conjugation
MUST SKELETONISE

Regular verb: skeletonise - skeletonised - skeletonised

Affirmation

Simple form	V-ing form
I must skeletonise you must skeletonise he must skeletonise we must skeletonise you must skeletonise they must skeletonise	I must be skeletonising you must be skeletonising he must be skeletonising we must be skeletonising you must be skeletonising they must be skeletonising
Perfect	V-ing perfect
I must have skeletonised you must have skeletonised he must have skeletonised we must have skeletonised you must have skeletonised they must have skeletonised	I must have been skeletonising you must have been skeletonising he must have been skeletonising we must have been skeletonising you must have been skeletonising they must have been skeletonising

Negation

Simple form	V-ing form
I must not skeletonise you must not skeletonise he must not skeletonise we must not skeletonise you must not skeletonise they must not skeletonise	I must not be skeletonising you must not be skeletonising he must not be skeletonising we must not be skeletonising you must not be skeletonising they must not be skeletonising
Perfect	V-ing perfect
I must not have skeletonised you must not have skeletonised he must not have skeletonised we must not have skeletonised you must not have skeletonised they must not have skeletonised	I must not have been skeletonising you must not have been skeletonising he must not have been skeletonising we must not have been skeletonising you must not have been skeletonising they must not have been skeletonising

Interrogative form

Simple form	V-ing form
must I skeletonise? must you skeletonise? must he skeletonise? must we skeletonise? must you skeletonise? must they skeletonise?	must I be skeletonising? must you be skeletonising? must he be skeletonising? must we be skeletonising? must you be skeletonising? must they be skeletonising?
Perfect	V-ing perfect
must I have skeletonised? must you have skeletonised? must he have skeletonised? must we have skeletonised? must you have skeletonised? must they have skeletonised?	must I have been skeletonising? must you have been skeletonising? must he have been skeletonising? must we have been skeletonising? must you have been skeletonising? must they have been skeletonising?

Interro-negative form

Simple form	V-ing form
must I not skeletonise? must you not skeletonise? must he not skeletonise? must we not skeletonise? must you not skeletonise? must they not skeletonise?	must I not be skeletonising? must you not be skeletonising? must he not be skeletonising? must we not be skeletonising? must you not be skeletonising? must they not be skeletonising?
Perfect	V-ing perfect
must I not have skeletonised? must you not have skeletonised? must he not have skeletonised? must we not have skeletonised? must you not have skeletonised? must they not have skeletonised?	must I not have been skeletonising? must you not have been skeletonising? must he not have been skeletonising? must we not have been skeletonising? must you not have been skeletonising? must they not have been skeletonising?