must skateboard
Verbe régulier : skateboard - skateboarded- skateboarded
Traduction française : faire du skateboard ou de la planche à roulettes 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must skateboard
you must skateboard
he must skateboard
we must skateboard
you must skateboard
they must skateboard 	I must be skateboarding
you must be skateboarding
he must be skateboarding
we must be skateboarding
you must be skateboarding
they must be skateboarding	I must have skateboarded
you must have skateboarded
he must have skateboarded
we must have skateboarded
you must have skateboarded
they must have skateboarded	I must have been skateboarding
you must have been skateboarding
he must have been skateboarding
we must have been skateboarding
you must have been skateboarding
they must have been skateboarding	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't skateboard
you mustn't skateboard
he mustn't skateboard
we mustn't skateboard
you mustn't skateboard
they mustn't skateboard 	I mustn't be skateboarding
you mustn't be skateboarding
he mustn't be skateboarding
we mustn't be skateboarding
you mustn't be skateboarding
they mustn't be skateboarding	I mustn't have skateboarded
you mustn't have skateboarded
he mustn't have skateboarded
we mustn't have skateboarded
you mustn't have skateboarded
they mustn't have skateboarded	I mustn't have been skateboarding
you mustn't have been skateboarding
he mustn't have been skateboarding
we mustn't have been skateboarding
you mustn't have been skateboarding
they mustn't have been skateboarding	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I skateboard?
must you skateboard?
must he skateboard?
must we skateboard?
must you skateboard?
must they skateboard? 	must I be skateboarding?
must you be skateboarding?
must he be skateboarding?
must we be skateboarding?
must you be skateboarding?
must they be skateboarding? 	must I have skateboarded?
must you have skateboarded?
must he have skateboarded?
must we have skateboarded?
must you have skateboarded?
must they have skateboarded? 	must I have been skateboarding?
must you have been skateboarding?
must he have been skateboarding?
must we have been skateboarding?
must you have been skateboarding?
must they have been skateboarding? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I skateboard?
mustn't you skateboard?
mustn't he skateboard?
mustn't we skateboard?
mustn't you skateboard?
mustn't they skateboard? 	mustn't I be skateboarding?
mustn't you be skateboarding?
mustn't he be skateboarding?
mustn't we be skateboarding?
mustn't you be skateboarding?
mustn't they be skateboarding? 	mustn't I have skateboarded?
mustn't you have skateboarded?
mustn't he have skateboarded?
mustn't we have skateboarded?
mustn't you have skateboarded?
mustn't they have skateboarded? 	mustn't I have been skateboarding?
mustn't you have been skateboarding?
mustn't he have been skateboarding?
mustn't we have been skateboarding?
mustn't you have been skateboarding?
mustn't they have been skateboarding?