English verb conjugation
MUST PEEK

Regular verb: peek - peeked - peeked

Affirmation

Simple form	V-ing form
I must peek you must peek he must peek we must peek you must peek they must peek	I must be peeking you must be peeking he must be peeking we must be peeking you must be peeking they must be peeking
Perfect	V-ing perfect
I must have peeked you must have peeked he must have peeked we must have peeked you must have peeked they must have peeked	I must have been peeking you must have been peeking he must have been peeking we must have been peeking you must have been peeking they must have been peeking

Negation

Simple form	V-ing form
I mustn't peek you mustn't peek he mustn't peek we mustn't peek you mustn't peek they mustn't peek	I mustn't be peeking you mustn't be peeking he mustn't be peeking we mustn't be peeking you mustn't be peeking they mustn't be peeking
Perfect	V-ing perfect
I mustn't have peeked you mustn't have peeked he mustn't have peeked we mustn't have peeked you mustn't have peeked they mustn't have peeked	I mustn't have been peeking you mustn't have been peeking he mustn't have been peeking we mustn't have been peeking you mustn't have been peeking they mustn't have been peeking

Interrogative form

Simple form	V-ing form
must I peek? must you peek? must he peek? must we peek? must you peek? must they peek?	must I be peeking? must you be peeking? must he be peeking? must we be peeking? must you be peeking? must they be peeking?
Perfect	V-ing perfect
must I have peeked? must you have peeked? must he have peeked? must we have peeked? must you have peeked? must they have peeked?	must I have been peeking? must you have been peeking? must he have been peeking? must we have been peeking? must you have been peeking? must they have been peeking?

Interro-negative form

Simple form	V-ing form
mustn't I peek? mustn't you peek? mustn't he peek? mustn't we peek? mustn't you peek? mustn't they peek?	mustn't I be peeking? mustn't you be peeking? mustn't he be peeking? mustn't we be peeking? mustn't you be peeking? mustn't they be peeking?
Perfect	V-ing perfect
mustn't I have peeked? mustn't you have peeked? mustn't he have peeked? mustn't we have peeked? mustn't you have peeked? mustn't they have peeked?	mustn't I have been peeking? mustn't you have been peeking? mustn't he have been peeking? mustn't we have been peeking? mustn't you have been peeking? mustn't they have been peeking?