English verb conjugation
MUST PEAK

Regular verb: peak - peaked - peaked

Affirmation

Simple form	V-ing form
I must peak you must peak she must peak we must peak you must peak they must peak	I must be peaking you must be peaking she must be peaking we must be peaking you must be peaking they must be peaking
Perfect	V-ing perfect
I must have peaked you must have peaked she must have peaked we must have peaked you must have peaked they must have peaked	I must have been peaking you must have been peaking she must have been peaking we must have been peaking you must have been peaking they must have been peaking

Negation

Simple form	V-ing form
I mustn't peak you mustn't peak she mustn't peak we mustn't peak you mustn't peak they mustn't peak	I mustn't be peaking you mustn't be peaking she mustn't be peaking we mustn't be peaking you mustn't be peaking they mustn't be peaking
Perfect	V-ing perfect
I mustn't have peaked you mustn't have peaked she mustn't have peaked we mustn't have peaked you mustn't have peaked they mustn't have peaked	I mustn't have been peaking you mustn't have been peaking she mustn't have been peaking we mustn't have been peaking you mustn't have been peaking they mustn't have been peaking

Interrogative form

Simple form	V-ing form
must I peak? must you peak? must she peak? must we peak? must you peak? must they peak?	must I be peaking? must you be peaking? must she be peaking? must we be peaking? must you be peaking? must they be peaking?
Perfect	V-ing perfect
must I have peaked? must you have peaked? must she have peaked? must we have peaked? must you have peaked? must they have peaked?	must I have been peaking? must you have been peaking? must she have been peaking? must we have been peaking? must you have been peaking? must they have been peaking?

Interro-negative form

Simple form	V-ing form
mustn't I peak? mustn't you peak? mustn't she peak? mustn't we peak? mustn't you peak? mustn't they peak?	mustn't I be peaking? mustn't you be peaking? mustn't she be peaking? mustn't we be peaking? mustn't you be peaking? mustn't they be peaking?
Perfect	V-ing perfect
mustn't I have peaked? mustn't you have peaked? mustn't she have peaked? mustn't we have peaked? mustn't you have peaked? mustn't they have peaked?	mustn't I have been peaking? mustn't you have been peaking? mustn't she have been peaking? mustn't we have been peaking? mustn't you have been peaking? mustn't they have been peaking?