English verb conjugation
MUST BODY-SURF

Regular verb: body-surf - body-surfed - body-surfed

Affirmation

Simple form	V-ing form
I must body-surf you must body-surf he must body-surf we must body-surf you must body-surf they must body-surf	I must be body-surfing you must be body-surfing he must be body-surfing we must be body-surfing you must be body-surfing they must be body-surfing
Perfect	V-ing perfect
I must have body-surfed you must have body-surfed he must have body-surfed we must have body-surfed you must have body-surfed they must have body-surfed	I must have been body-surfing you must have been body-surfing he must have been body-surfing we must have been body-surfing you must have been body-surfing they must have been body-surfing

Negation

Simple form	V-ing form
I mustn't body-surf you mustn't body-surf he mustn't body-surf we mustn't body-surf you mustn't body-surf they mustn't body-surf	I mustn't be body-surfing you mustn't be body-surfing he mustn't be body-surfing we mustn't be body-surfing you mustn't be body-surfing they mustn't be body-surfing
Perfect	V-ing perfect
I mustn't have body-surfed you mustn't have body-surfed he mustn't have body-surfed we mustn't have body-surfed you mustn't have body-surfed they mustn't have body-surfed	I mustn't have been body-surfing you mustn't have been body-surfing he mustn't have been body-surfing we mustn't have been body-surfing you mustn't have been body-surfing they mustn't have been body-surfing

Interrogative form

Simple form	V-ing form
must I body-surf? must you body-surf? must he body-surf? must we body-surf? must you body-surf? must they body-surf?	must I be body-surfing? must you be body-surfing? must he be body-surfing? must we be body-surfing? must you be body-surfing? must they be body-surfing?
Perfect	V-ing perfect
must I have body-surfed? must you have body-surfed? must he have body-surfed? must we have body-surfed? must you have body-surfed? must they have body-surfed?	must I have been body-surfing? must you have been body-surfing? must he have been body-surfing? must we have been body-surfing? must you have been body-surfing? must they have been body-surfing?

Interro-negative form

Simple form	V-ing form
mustn't I body-surf? mustn't you body-surf? mustn't he body-surf? mustn't we body-surf? mustn't you body-surf? mustn't they body-surf?	mustn't I be body-surfing? mustn't you be body-surfing? mustn't he be body-surfing? mustn't we be body-surfing? mustn't you be body-surfing? mustn't they be body-surfing?
Perfect	V-ing perfect
mustn't I have body-surfed? mustn't you have body-surfed? mustn't he have body-surfed? mustn't we have body-surfed? mustn't you have body-surfed? mustn't they have body-surfed?	mustn't I have been body-surfing? mustn't you have been body-surfing? mustn't he have been body-surfing? mustn't we have been body-surfing? mustn't you have been body-surfing? mustn't they have been body-surfing?