English verb conjugation
MUST PARTICIPATE

Regular verb: participate - participated - participated

Affirmation

Simple form	V-ing form
I must participate you must participate she must participate we must participate you must participate they must participate	I must be participating you must be participating she must be participating we must be participating you must be participating they must be participating
Perfect	V-ing perfect
I must have participated you must have participated she must have participated we must have participated you must have participated they must have participated	I must have been participating you must have been participating she must have been participating we must have been participating you must have been participating they must have been participating

Negation

Simple form	V-ing form
I mustn't participate you mustn't participate she mustn't participate we mustn't participate you mustn't participate they mustn't participate	I mustn't be participating you mustn't be participating she mustn't be participating we mustn't be participating you mustn't be participating they mustn't be participating
Perfect	V-ing perfect
I mustn't have participated you mustn't have participated she mustn't have participated we mustn't have participated you mustn't have participated they mustn't have participated	I mustn't have been participating you mustn't have been participating she mustn't have been participating we mustn't have been participating you mustn't have been participating they mustn't have been participating

Interrogative form

Simple form	V-ing form
must I participate? must you participate? must she participate? must we participate? must you participate? must they participate?	must I be participating? must you be participating? must she be participating? must we be participating? must you be participating? must they be participating?
Perfect	V-ing perfect
must I have participated? must you have participated? must she have participated? must we have participated? must you have participated? must they have participated?	must I have been participating? must you have been participating? must she have been participating? must we have been participating? must you have been participating? must they have been participating?

Interro-negative form

Simple form	V-ing form
mustn't I participate? mustn't you participate? mustn't she participate? mustn't we participate? mustn't you participate? mustn't they participate?	mustn't I be participating? mustn't you be participating? mustn't she be participating? mustn't we be participating? mustn't you be participating? mustn't they be participating?
Perfect	V-ing perfect
mustn't I have participated? mustn't you have participated? mustn't she have participated? mustn't we have participated? mustn't you have participated? mustn't they have participated?	mustn't I have been participating? mustn't you have been participating? mustn't she have been participating? mustn't we have been participating? mustn't you have been participating? mustn't they have been participating?