English verb conjugation
MUST PICNIC

Regular verb: picnic - picniced - picniced

Affirmation

Simple form	V-ing form
I must picnic you must picnic he must picnic we must picnic you must picnic they must picnic	I must be picnicing you must be picnicing he must be picnicing we must be picnicing you must be picnicing they must be picnicing
Perfect	V-ing perfect
I must have picniced you must have picniced he must have picniced we must have picniced you must have picniced they must have picniced	I must have been picnicing you must have been picnicing he must have been picnicing we must have been picnicing you must have been picnicing they must have been picnicing

Negation

Simple form	V-ing form
I mustn't picnic you mustn't picnic he mustn't picnic we mustn't picnic you mustn't picnic they mustn't picnic	I mustn't be picnicing you mustn't be picnicing he mustn't be picnicing we mustn't be picnicing you mustn't be picnicing they mustn't be picnicing
Perfect	V-ing perfect
I mustn't have picniced you mustn't have picniced he mustn't have picniced we mustn't have picniced you mustn't have picniced they mustn't have picniced	I mustn't have been picnicing you mustn't have been picnicing he mustn't have been picnicing we mustn't have been picnicing you mustn't have been picnicing they mustn't have been picnicing

Interrogative form

Simple form	V-ing form
must I picnic? must you picnic? must he picnic? must we picnic? must you picnic? must they picnic?	must I be picnicing? must you be picnicing? must he be picnicing? must we be picnicing? must you be picnicing? must they be picnicing?
Perfect	V-ing perfect
must I have picniced? must you have picniced? must he have picniced? must we have picniced? must you have picniced? must they have picniced?	must I have been picnicing? must you have been picnicing? must he have been picnicing? must we have been picnicing? must you have been picnicing? must they have been picnicing?

Interro-negative form

Simple form	V-ing form
mustn't I picnic? mustn't you picnic? mustn't he picnic? mustn't we picnic? mustn't you picnic? mustn't they picnic?	mustn't I be picnicing? mustn't you be picnicing? mustn't he be picnicing? mustn't we be picnicing? mustn't you be picnicing? mustn't they be picnicing?
Perfect	V-ing perfect
mustn't I have picniced? mustn't you have picniced? mustn't he have picniced? mustn't we have picniced? mustn't you have picniced? mustn't they have picniced?	mustn't I have been picnicing? mustn't you have been picnicing? mustn't he have been picnicing? mustn't we have been picnicing? mustn't you have been picnicing? mustn't they have been picnicing?