English verb conjugation
MUST CONGREGATE

Regular verb: congregate - congregated - congregated

Affirmation

Simple form	V-ing form
I must congregate you must congregate she must congregate we must congregate you must congregate they must congregate	I must be congregating you must be congregating she must be congregating we must be congregating you must be congregating they must be congregating
Perfect	V-ing perfect
I must have congregated you must have congregated she must have congregated we must have congregated you must have congregated they must have congregated	I must have been congregating you must have been congregating she must have been congregating we must have been congregating you must have been congregating they must have been congregating

Negation

Simple form	V-ing form
I mustn't congregate you mustn't congregate she mustn't congregate we mustn't congregate you mustn't congregate they mustn't congregate	I mustn't be congregating you mustn't be congregating she mustn't be congregating we mustn't be congregating you mustn't be congregating they mustn't be congregating
Perfect	V-ing perfect
I mustn't have congregated you mustn't have congregated she mustn't have congregated we mustn't have congregated you mustn't have congregated they mustn't have congregated	I mustn't have been congregating you mustn't have been congregating she mustn't have been congregating we mustn't have been congregating you mustn't have been congregating they mustn't have been congregating

Interrogative form

Simple form	V-ing form
must I congregate? must you congregate? must she congregate? must we congregate? must you congregate? must they congregate?	must I be congregating? must you be congregating? must she be congregating? must we be congregating? must you be congregating? must they be congregating?
Perfect	V-ing perfect
must I have congregated? must you have congregated? must she have congregated? must we have congregated? must you have congregated? must they have congregated?	must I have been congregating? must you have been congregating? must she have been congregating? must we have been congregating? must you have been congregating? must they have been congregating?

Interro-negative form

Simple form	V-ing form
mustn't I congregate? mustn't you congregate? mustn't she congregate? mustn't we congregate? mustn't you congregate? mustn't they congregate?	mustn't I be congregating? mustn't you be congregating? mustn't she be congregating? mustn't we be congregating? mustn't you be congregating? mustn't they be congregating?
Perfect	V-ing perfect
mustn't I have congregated? mustn't you have congregated? mustn't she have congregated? mustn't we have congregated? mustn't you have congregated? mustn't they have congregated?	mustn't I have been congregating? mustn't you have been congregating? mustn't she have been congregating? mustn't we have been congregating? mustn't you have been congregating? mustn't they have been congregating?