English verb conjugation
MUST LAUNCH

Regular verb: launch - launched - launched

Affirmation

Simple form	V-ing form
I must launch you must launch he must launch we must launch you must launch they must launch	I must be launching you must be launching he must be launching we must be launching you must be launching they must be launching
Perfect	V-ing perfect
I must have launched you must have launched he must have launched we must have launched you must have launched they must have launched	I must have been launching you must have been launching he must have been launching we must have been launching you must have been launching they must have been launching

Negation

Simple form	V-ing form
I mustn't launch you mustn't launch he mustn't launch we mustn't launch you mustn't launch they mustn't launch	I mustn't be launching you mustn't be launching he mustn't be launching we mustn't be launching you mustn't be launching they mustn't be launching
Perfect	V-ing perfect
I mustn't have launched you mustn't have launched he mustn't have launched we mustn't have launched you mustn't have launched they mustn't have launched	I mustn't have been launching you mustn't have been launching he mustn't have been launching we mustn't have been launching you mustn't have been launching they mustn't have been launching

Interrogative form

Simple form	V-ing form
must I launch? must you launch? must he launch? must we launch? must you launch? must they launch?	must I be launching? must you be launching? must he be launching? must we be launching? must you be launching? must they be launching?
Perfect	V-ing perfect
must I have launched? must you have launched? must he have launched? must we have launched? must you have launched? must they have launched?	must I have been launching? must you have been launching? must he have been launching? must we have been launching? must you have been launching? must they have been launching?

Interro-negative form

Simple form	V-ing form
mustn't I launch? mustn't you launch? mustn't he launch? mustn't we launch? mustn't you launch? mustn't they launch?	mustn't I be launching? mustn't you be launching? mustn't he be launching? mustn't we be launching? mustn't you be launching? mustn't they be launching?
Perfect	V-ing perfect
mustn't I have launched? mustn't you have launched? mustn't he have launched? mustn't we have launched? mustn't you have launched? mustn't they have launched?	mustn't I have been launching? mustn't you have been launching? mustn't he have been launching? mustn't we have been launching? mustn't you have been launching? mustn't they have been launching?