English verb conjugation
MUST PLUMMET

Regular verb: plummet - plummeted - plummeted

Affirmation

Simple form	V-ing form
I must plummet you must plummet he must plummet we must plummet you must plummet they must plummet	I must be plummeting you must be plummeting he must be plummeting we must be plummeting you must be plummeting they must be plummeting
Perfect	V-ing perfect
I must have plummeted you must have plummeted he must have plummeted we must have plummeted you must have plummeted they must have plummeted	I must have been plummeting you must have been plummeting he must have been plummeting we must have been plummeting you must have been plummeting they must have been plummeting

Negation

Simple form	V-ing form
I mustn't plummet you mustn't plummet he mustn't plummet we mustn't plummet you mustn't plummet they mustn't plummet	I mustn't be plummeting you mustn't be plummeting he mustn't be plummeting we mustn't be plummeting you mustn't be plummeting they mustn't be plummeting
Perfect	V-ing perfect
I mustn't have plummeted you mustn't have plummeted he mustn't have plummeted we mustn't have plummeted you mustn't have plummeted they mustn't have plummeted	I mustn't have been plummeting you mustn't have been plummeting he mustn't have been plummeting we mustn't have been plummeting you mustn't have been plummeting they mustn't have been plummeting

Interrogative form

Simple form	V-ing form
must I plummet? must you plummet? must he plummet? must we plummet? must you plummet? must they plummet?	must I be plummeting? must you be plummeting? must he be plummeting? must we be plummeting? must you be plummeting? must they be plummeting?
Perfect	V-ing perfect
must I have plummeted? must you have plummeted? must he have plummeted? must we have plummeted? must you have plummeted? must they have plummeted?	must I have been plummeting? must you have been plummeting? must he have been plummeting? must we have been plummeting? must you have been plummeting? must they have been plummeting?

Interro-negative form

Simple form	V-ing form
mustn't I plummet? mustn't you plummet? mustn't he plummet? mustn't we plummet? mustn't you plummet? mustn't they plummet?	mustn't I be plummeting? mustn't you be plummeting? mustn't he be plummeting? mustn't we be plummeting? mustn't you be plummeting? mustn't they be plummeting?
Perfect	V-ing perfect
mustn't I have plummeted? mustn't you have plummeted? mustn't he have plummeted? mustn't we have plummeted? mustn't you have plummeted? mustn't they have plummeted?	mustn't I have been plummeting? mustn't you have been plummeting? mustn't he have been plummeting? mustn't we have been plummeting? mustn't you have been plummeting? mustn't they have been plummeting?