must hyperventilate
Regular verb: hyperventilate - hyperventilated- hyperventilated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must hyperventilate
you must hyperventilate
he must hyperventilate
we must hyperventilate
you must hyperventilate
they must hyperventilate 	I must be hyperventilating
you must be hyperventilating
he must be hyperventilating
we must be hyperventilating
you must be hyperventilating
they must be hyperventilating	I must have hyperventilated
you must have hyperventilated
he must have hyperventilated
we must have hyperventilated
you must have hyperventilated
they must have hyperventilated	I must have been hyperventilating
you must have been hyperventilating
he must have been hyperventilating
we must have been hyperventilating
you must have been hyperventilating
they must have been hyperventilating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't hyperventilate
you mustn't hyperventilate
he mustn't hyperventilate
we mustn't hyperventilate
you mustn't hyperventilate
they mustn't hyperventilate 	I mustn't be hyperventilating
you mustn't be hyperventilating
he mustn't be hyperventilating
we mustn't be hyperventilating
you mustn't be hyperventilating
they mustn't be hyperventilating	I mustn't have hyperventilated
you mustn't have hyperventilated
he mustn't have hyperventilated
we mustn't have hyperventilated
you mustn't have hyperventilated
they mustn't have hyperventilated	I mustn't have been hyperventilating
you mustn't have been hyperventilating
he mustn't have been hyperventilating
we mustn't have been hyperventilating
you mustn't have been hyperventilating
they mustn't have been hyperventilating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I hyperventilate?
must you hyperventilate?
must he hyperventilate?
must we hyperventilate?
must you hyperventilate?
must they hyperventilate? 	must I be hyperventilating?
must you be hyperventilating?
must he be hyperventilating?
must we be hyperventilating?
must you be hyperventilating?
must they be hyperventilating? 	must I have hyperventilated?
must you have hyperventilated?
must he have hyperventilated?
must we have hyperventilated?
must you have hyperventilated?
must they have hyperventilated? 	must I have been hyperventilating?
must you have been hyperventilating?
must he have been hyperventilating?
must we have been hyperventilating?
must you have been hyperventilating?
must they have been hyperventilating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I hyperventilate?
mustn't you hyperventilate?
mustn't he hyperventilate?
mustn't we hyperventilate?
mustn't you hyperventilate?
mustn't they hyperventilate? 	mustn't I be hyperventilating?
mustn't you be hyperventilating?
mustn't he be hyperventilating?
mustn't we be hyperventilating?
mustn't you be hyperventilating?
mustn't they be hyperventilating? 	mustn't I have hyperventilated?
mustn't you have hyperventilated?
mustn't he have hyperventilated?
mustn't we have hyperventilated?
mustn't you have hyperventilated?
mustn't they have hyperventilated? 	mustn't I have been hyperventilating?
mustn't you have been hyperventilating?
mustn't he have been hyperventilating?
mustn't we have been hyperventilating?
mustn't you have been hyperventilating?
mustn't they have been hyperventilating?