must refuel
Verbo regolare: refuel - refuelled- refuelled

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I must refuel
you must refuel
he must refuel
we must refuel
you must refuel
they must refuel 	I must be refuelling
you must be refuelling
he must be refuelling
we must be refuelling
you must be refuelling
they must be refuelling	I must have refuelled
you must have refuelled
he must have refuelled
we must have refuelled
you must have refuelled
they must have refuelled	I must have been refuelling
you must have been refuelling
he must have been refuelling
we must have been refuelling
you must have been refuelling
they must have been refuelling	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I mustn't refuel
you mustn't refuel
he mustn't refuel
we mustn't refuel
you mustn't refuel
they mustn't refuel 	I mustn't be refuelling
you mustn't be refuelling
he mustn't be refuelling
we mustn't be refuelling
you mustn't be refuelling
they mustn't be refuelling	I mustn't have refuelled
you mustn't have refuelled
he mustn't have refuelled
we mustn't have refuelled
you mustn't have refuelled
they mustn't have refuelled	I mustn't have been refuelling
you mustn't have been refuelling
he mustn't have been refuelling
we mustn't have been refuelling
you mustn't have been refuelling
they mustn't have been refuelling	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
must I refuel?
must you refuel?
must he refuel?
must we refuel?
must you refuel?
must they refuel? 	must I be refuelling?
must you be refuelling?
must he be refuelling?
must we be refuelling?
must you be refuelling?
must they be refuelling? 	must I have refuelled?
must you have refuelled?
must he have refuelled?
must we have refuelled?
must you have refuelled?
must they have refuelled? 	must I have been refuelling?
must you have been refuelling?
must he have been refuelling?
must we have been refuelling?
must you have been refuelling?
must they have been refuelling? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
mustn't I refuel?
mustn't you refuel?
mustn't he refuel?
mustn't we refuel?
mustn't you refuel?
mustn't they refuel? 	mustn't I be refuelling?
mustn't you be refuelling?
mustn't he be refuelling?
mustn't we be refuelling?
mustn't you be refuelling?
mustn't they be refuelling? 	mustn't I have refuelled?
mustn't you have refuelled?
mustn't he have refuelled?
mustn't we have refuelled?
mustn't you have refuelled?
mustn't they have refuelled? 	mustn't I have been refuelling?
mustn't you have been refuelling?
mustn't he have been refuelling?
mustn't we have been refuelling?
mustn't you have been refuelling?
mustn't they have been refuelling?