English verb conjugation
MUST STOCKPILE

Regular verb: stockpile - stockpiled - stockpiled

Affirmation

Simple form	V-ing form
I must stockpile you must stockpile he must stockpile we must stockpile you must stockpile they must stockpile	I must be stockpiling you must be stockpiling he must be stockpiling we must be stockpiling you must be stockpiling they must be stockpiling
Perfect	V-ing perfect
I must have stockpiled you must have stockpiled he must have stockpiled we must have stockpiled you must have stockpiled they must have stockpiled	I must have been stockpiling you must have been stockpiling he must have been stockpiling we must have been stockpiling you must have been stockpiling they must have been stockpiling

Negation

Simple form	V-ing form
I mustn't stockpile you mustn't stockpile he mustn't stockpile we mustn't stockpile you mustn't stockpile they mustn't stockpile	I mustn't be stockpiling you mustn't be stockpiling he mustn't be stockpiling we mustn't be stockpiling you mustn't be stockpiling they mustn't be stockpiling
Perfect	V-ing perfect
I mustn't have stockpiled you mustn't have stockpiled he mustn't have stockpiled we mustn't have stockpiled you mustn't have stockpiled they mustn't have stockpiled	I mustn't have been stockpiling you mustn't have been stockpiling he mustn't have been stockpiling we mustn't have been stockpiling you mustn't have been stockpiling they mustn't have been stockpiling

Interrogative form

Simple form	V-ing form
must I stockpile? must you stockpile? must he stockpile? must we stockpile? must you stockpile? must they stockpile?	must I be stockpiling? must you be stockpiling? must he be stockpiling? must we be stockpiling? must you be stockpiling? must they be stockpiling?
Perfect	V-ing perfect
must I have stockpiled? must you have stockpiled? must he have stockpiled? must we have stockpiled? must you have stockpiled? must they have stockpiled?	must I have been stockpiling? must you have been stockpiling? must he have been stockpiling? must we have been stockpiling? must you have been stockpiling? must they have been stockpiling?

Interro-negative form

Simple form	V-ing form
mustn't I stockpile? mustn't you stockpile? mustn't he stockpile? mustn't we stockpile? mustn't you stockpile? mustn't they stockpile?	mustn't I be stockpiling? mustn't you be stockpiling? mustn't he be stockpiling? mustn't we be stockpiling? mustn't you be stockpiling? mustn't they be stockpiling?
Perfect	V-ing perfect
mustn't I have stockpiled? mustn't you have stockpiled? mustn't he have stockpiled? mustn't we have stockpiled? mustn't you have stockpiled? mustn't they have stockpiled?	mustn't I have been stockpiling? mustn't you have been stockpiling? mustn't he have been stockpiling? mustn't we have been stockpiling? mustn't you have been stockpiling? mustn't they have been stockpiling?