must hydrate
Regular verb: hydrate - hydrated- hydrated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must hydrate
you must hydrate
he must hydrate
we must hydrate
you must hydrate
they must hydrate 	I must be hydrating
you must be hydrating
he must be hydrating
we must be hydrating
you must be hydrating
they must be hydrating	I must have hydrated
you must have hydrated
he must have hydrated
we must have hydrated
you must have hydrated
they must have hydrated	I must have been hydrating
you must have been hydrating
he must have been hydrating
we must have been hydrating
you must have been hydrating
they must have been hydrating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I mustn't hydrate
you mustn't hydrate
he mustn't hydrate
we mustn't hydrate
you mustn't hydrate
they mustn't hydrate 	I mustn't be hydrating
you mustn't be hydrating
he mustn't be hydrating
we mustn't be hydrating
you mustn't be hydrating
they mustn't be hydrating	I mustn't have hydrated
you mustn't have hydrated
he mustn't have hydrated
we mustn't have hydrated
you mustn't have hydrated
they mustn't have hydrated	I mustn't have been hydrating
you mustn't have been hydrating
he mustn't have been hydrating
we mustn't have been hydrating
you mustn't have been hydrating
they mustn't have been hydrating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I hydrate?
must you hydrate?
must he hydrate?
must we hydrate?
must you hydrate?
must they hydrate? 	must I be hydrating?
must you be hydrating?
must he be hydrating?
must we be hydrating?
must you be hydrating?
must they be hydrating? 	must I have hydrated?
must you have hydrated?
must he have hydrated?
must we have hydrated?
must you have hydrated?
must they have hydrated? 	must I have been hydrating?
must you have been hydrating?
must he have been hydrating?
must we have been hydrating?
must you have been hydrating?
must they have been hydrating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
mustn't I hydrate?
mustn't you hydrate?
mustn't he hydrate?
mustn't we hydrate?
mustn't you hydrate?
mustn't they hydrate? 	mustn't I be hydrating?
mustn't you be hydrating?
mustn't he be hydrating?
mustn't we be hydrating?
mustn't you be hydrating?
mustn't they be hydrating? 	mustn't I have hydrated?
mustn't you have hydrated?
mustn't he have hydrated?
mustn't we have hydrated?
mustn't you have hydrated?
mustn't they have hydrated? 	mustn't I have been hydrating?
mustn't you have been hydrating?
mustn't he have been hydrating?
mustn't we have been hydrating?
mustn't you have been hydrating?
mustn't they have been hydrating?