English verb conjugation
MUST UNDERBAKE

Regular verb: underbake - underbaked - underbaked

Affirmation

Simple form	V-ing form
I must underbake you must underbake he must underbake we must underbake you must underbake they must underbake	I must be underbaking you must be underbaking he must be underbaking we must be underbaking you must be underbaking they must be underbaking
Perfect	V-ing perfect
I must have underbaked you must have underbaked he must have underbaked we must have underbaked you must have underbaked they must have underbaked	I must have been underbaking you must have been underbaking he must have been underbaking we must have been underbaking you must have been underbaking they must have been underbaking

Negation

Simple form	V-ing form
I mustn't underbake you mustn't underbake he mustn't underbake we mustn't underbake you mustn't underbake they mustn't underbake	I mustn't be underbaking you mustn't be underbaking he mustn't be underbaking we mustn't be underbaking you mustn't be underbaking they mustn't be underbaking
Perfect	V-ing perfect
I mustn't have underbaked you mustn't have underbaked he mustn't have underbaked we mustn't have underbaked you mustn't have underbaked they mustn't have underbaked	I mustn't have been underbaking you mustn't have been underbaking he mustn't have been underbaking we mustn't have been underbaking you mustn't have been underbaking they mustn't have been underbaking

Interrogative form

Simple form	V-ing form
must I underbake? must you underbake? must he underbake? must we underbake? must you underbake? must they underbake?	must I be underbaking? must you be underbaking? must he be underbaking? must we be underbaking? must you be underbaking? must they be underbaking?
Perfect	V-ing perfect
must I have underbaked? must you have underbaked? must he have underbaked? must we have underbaked? must you have underbaked? must they have underbaked?	must I have been underbaking? must you have been underbaking? must he have been underbaking? must we have been underbaking? must you have been underbaking? must they have been underbaking?

Interro-negative form

Simple form	V-ing form
mustn't I underbake? mustn't you underbake? mustn't he underbake? mustn't we underbake? mustn't you underbake? mustn't they underbake?	mustn't I be underbaking? mustn't you be underbaking? mustn't he be underbaking? mustn't we be underbaking? mustn't you be underbaking? mustn't they be underbaking?
Perfect	V-ing perfect
mustn't I have underbaked? mustn't you have underbaked? mustn't he have underbaked? mustn't we have underbaked? mustn't you have underbaked? mustn't they have underbaked?	mustn't I have been underbaking? mustn't you have been underbaking? mustn't he have been underbaking? mustn't we have been underbaking? mustn't you have been underbaking? mustn't they have been underbaking?