must vacation
Verbe régulier : vacation - vacationed- vacationed
Traduction française : (US) prendre ou passer des vacances 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must vacation
you must vacation
he must vacation
we must vacation
you must vacation
they must vacation 	I must be vacationing
you must be vacationing
he must be vacationing
we must be vacationing
you must be vacationing
they must be vacationing	I must have vacationed
you must have vacationed
he must have vacationed
we must have vacationed
you must have vacationed
they must have vacationed	I must have been vacationing
you must have been vacationing
he must have been vacationing
we must have been vacationing
you must have been vacationing
they must have been vacationing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not vacation
you must not vacation
he must not vacation
we must not vacation
you must not vacation
they must not vacation 	I must not be vacationing
you must not be vacationing
he must not be vacationing
we must not be vacationing
you must not be vacationing
they must not be vacationing	I must not have vacationed
you must not have vacationed
he must not have vacationed
we must not have vacationed
you must not have vacationed
they must not have vacationed	I must not have been vacationing
you must not have been vacationing
he must not have been vacationing
we must not have been vacationing
you must not have been vacationing
they must not have been vacationing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I vacation?
must you vacation?
must he vacation?
must we vacation?
must you vacation?
must they vacation? 	must I be vacationing?
must you be vacationing?
must he be vacationing?
must we be vacationing?
must you be vacationing?
must they be vacationing? 	must I have vacationed?
must you have vacationed?
must he have vacationed?
must we have vacationed?
must you have vacationed?
must they have vacationed? 	must I have been vacationing?
must you have been vacationing?
must he have been vacationing?
must we have been vacationing?
must you have been vacationing?
must they have been vacationing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not vacation?
must you not vacation?
must he not vacation?
must we not vacation?
must you not vacation?
must they not vacation? 	must I not be vacationing?
must you not be vacationing?
must he not be vacationing?
must we not be vacationing?
must you not be vacationing?
must they not be vacationing? 	must I not have vacationed?
must you not have vacationed?
must he not have vacationed?
must we not have vacationed?
must you not have vacationed?
must they not have vacationed? 	must I not have been vacationing?
must you not have been vacationing?
must he not have been vacationing?
must we not have been vacationing?
must you not have been vacationing?
must they not have been vacationing?