English verb conjugation
MUST ACCUMULATE

Regular verb: accumulate - accumulated - accumulated

Affirmation

Simple form	V-ing form
I must accumulate you must accumulate she must accumulate we must accumulate you must accumulate they must accumulate	I must be accumulating you must be accumulating she must be accumulating we must be accumulating you must be accumulating they must be accumulating
Perfect	V-ing perfect
I must have accumulated you must have accumulated she must have accumulated we must have accumulated you must have accumulated they must have accumulated	I must have been accumulating you must have been accumulating she must have been accumulating we must have been accumulating you must have been accumulating they must have been accumulating

Negation

Simple form	V-ing form
I mustn't accumulate you mustn't accumulate she mustn't accumulate we mustn't accumulate you mustn't accumulate they mustn't accumulate	I mustn't be accumulating you mustn't be accumulating she mustn't be accumulating we mustn't be accumulating you mustn't be accumulating they mustn't be accumulating
Perfect	V-ing perfect
I mustn't have accumulated you mustn't have accumulated she mustn't have accumulated we mustn't have accumulated you mustn't have accumulated they mustn't have accumulated	I mustn't have been accumulating you mustn't have been accumulating she mustn't have been accumulating we mustn't have been accumulating you mustn't have been accumulating they mustn't have been accumulating

Interrogative form

Simple form	V-ing form
must I accumulate? must you accumulate? must she accumulate? must we accumulate? must you accumulate? must they accumulate?	must I be accumulating? must you be accumulating? must she be accumulating? must we be accumulating? must you be accumulating? must they be accumulating?
Perfect	V-ing perfect
must I have accumulated? must you have accumulated? must she have accumulated? must we have accumulated? must you have accumulated? must they have accumulated?	must I have been accumulating? must you have been accumulating? must she have been accumulating? must we have been accumulating? must you have been accumulating? must they have been accumulating?

Interro-negative form

Simple form	V-ing form
mustn't I accumulate? mustn't you accumulate? mustn't she accumulate? mustn't we accumulate? mustn't you accumulate? mustn't they accumulate?	mustn't I be accumulating? mustn't you be accumulating? mustn't she be accumulating? mustn't we be accumulating? mustn't you be accumulating? mustn't they be accumulating?
Perfect	V-ing perfect
mustn't I have accumulated? mustn't you have accumulated? mustn't she have accumulated? mustn't we have accumulated? mustn't you have accumulated? mustn't they have accumulated?	mustn't I have been accumulating? mustn't you have been accumulating? mustn't she have been accumulating? mustn't we have been accumulating? mustn't you have been accumulating? mustn't they have been accumulating?