English verb conjugation
MUST ANNOUNCE

Regular verb: announce - announced - announced

Affirmation

Simple form	V-ing form
I must announce you must announce she must announce we must announce you must announce they must announce	I must be announcing you must be announcing she must be announcing we must be announcing you must be announcing they must be announcing
Perfect	V-ing perfect
I must have announced you must have announced she must have announced we must have announced you must have announced they must have announced	I must have been announcing you must have been announcing she must have been announcing we must have been announcing you must have been announcing they must have been announcing

Negation

Simple form	V-ing form
I mustn't announce you mustn't announce she mustn't announce we mustn't announce you mustn't announce they mustn't announce	I mustn't be announcing you mustn't be announcing she mustn't be announcing we mustn't be announcing you mustn't be announcing they mustn't be announcing
Perfect	V-ing perfect
I mustn't have announced you mustn't have announced she mustn't have announced we mustn't have announced you mustn't have announced they mustn't have announced	I mustn't have been announcing you mustn't have been announcing she mustn't have been announcing we mustn't have been announcing you mustn't have been announcing they mustn't have been announcing

Interrogative form

Simple form	V-ing form
must I announce? must you announce? must she announce? must we announce? must you announce? must they announce?	must I be announcing? must you be announcing? must she be announcing? must we be announcing? must you be announcing? must they be announcing?
Perfect	V-ing perfect
must I have announced? must you have announced? must she have announced? must we have announced? must you have announced? must they have announced?	must I have been announcing? must you have been announcing? must she have been announcing? must we have been announcing? must you have been announcing? must they have been announcing?

Interro-negative form

Simple form	V-ing form
mustn't I announce? mustn't you announce? mustn't she announce? mustn't we announce? mustn't you announce? mustn't they announce?	mustn't I be announcing? mustn't you be announcing? mustn't she be announcing? mustn't we be announcing? mustn't you be announcing? mustn't they be announcing?
Perfect	V-ing perfect
mustn't I have announced? mustn't you have announced? mustn't she have announced? mustn't we have announced? mustn't you have announced? mustn't they have announced?	mustn't I have been announcing? mustn't you have been announcing? mustn't she have been announcing? mustn't we have been announcing? mustn't you have been announcing? mustn't they have been announcing?