must float
Regular verb: float - floated- floated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must float
you must float
he must float
we must float
you must float
they must float 	I must be floating
you must be floating
he must be floating
we must be floating
you must be floating
they must be floating	I must have floated
you must have floated
he must have floated
we must have floated
you must have floated
they must have floated	I must have been floating
you must have been floating
he must have been floating
we must have been floating
you must have been floating
they must have been floating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't float
you mustn't float
he mustn't float
we mustn't float
you mustn't float
they mustn't float 	I mustn't be floating
you mustn't be floating
he mustn't be floating
we mustn't be floating
you mustn't be floating
they mustn't be floating	I mustn't have floated
you mustn't have floated
he mustn't have floated
we mustn't have floated
you mustn't have floated
they mustn't have floated	I mustn't have been floating
you mustn't have been floating
he mustn't have been floating
we mustn't have been floating
you mustn't have been floating
they mustn't have been floating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I float?
must you float?
must he float?
must we float?
must you float?
must they float? 	must I be floating?
must you be floating?
must he be floating?
must we be floating?
must you be floating?
must they be floating? 	must I have floated?
must you have floated?
must he have floated?
must we have floated?
must you have floated?
must they have floated? 	must I have been floating?
must you have been floating?
must he have been floating?
must we have been floating?
must you have been floating?
must they have been floating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I float?
mustn't you float?
mustn't he float?
mustn't we float?
mustn't you float?
mustn't they float? 	mustn't I be floating?
mustn't you be floating?
mustn't he be floating?
mustn't we be floating?
mustn't you be floating?
mustn't they be floating? 	mustn't I have floated?
mustn't you have floated?
mustn't he have floated?
mustn't we have floated?
mustn't you have floated?
mustn't they have floated? 	mustn't I have been floating?
mustn't you have been floating?
mustn't he have been floating?
mustn't we have been floating?
mustn't you have been floating?
mustn't they have been floating?