English verb conjugation
MUST MARCEL

Regular verb: marcel - marceled - marceled

Affirmation

Simple form	V-ing form
I must marcel you must marcel he must marcel we must marcel you must marcel they must marcel	I must be marceling you must be marceling he must be marceling we must be marceling you must be marceling they must be marceling
Perfect	V-ing perfect
I must have marceled you must have marceled he must have marceled we must have marceled you must have marceled they must have marceled	I must have been marceling you must have been marceling he must have been marceling we must have been marceling you must have been marceling they must have been marceling

Negation

Simple form	V-ing form
I mustn't marcel you mustn't marcel he mustn't marcel we mustn't marcel you mustn't marcel they mustn't marcel	I mustn't be marceling you mustn't be marceling he mustn't be marceling we mustn't be marceling you mustn't be marceling they mustn't be marceling
Perfect	V-ing perfect
I mustn't have marceled you mustn't have marceled he mustn't have marceled we mustn't have marceled you mustn't have marceled they mustn't have marceled	I mustn't have been marceling you mustn't have been marceling he mustn't have been marceling we mustn't have been marceling you mustn't have been marceling they mustn't have been marceling

Interrogative form

Simple form	V-ing form
must I marcel? must you marcel? must he marcel? must we marcel? must you marcel? must they marcel?	must I be marceling? must you be marceling? must he be marceling? must we be marceling? must you be marceling? must they be marceling?
Perfect	V-ing perfect
must I have marceled? must you have marceled? must he have marceled? must we have marceled? must you have marceled? must they have marceled?	must I have been marceling? must you have been marceling? must he have been marceling? must we have been marceling? must you have been marceling? must they have been marceling?

Interro-negative form

Simple form	V-ing form
mustn't I marcel? mustn't you marcel? mustn't he marcel? mustn't we marcel? mustn't you marcel? mustn't they marcel?	mustn't I be marceling? mustn't you be marceling? mustn't he be marceling? mustn't we be marceling? mustn't you be marceling? mustn't they be marceling?
Perfect	V-ing perfect
mustn't I have marceled? mustn't you have marceled? mustn't he have marceled? mustn't we have marceled? mustn't you have marceled? mustn't they have marceled?	mustn't I have been marceling? mustn't you have been marceling? mustn't he have been marceling? mustn't we have been marceling? mustn't you have been marceling? mustn't they have been marceling?