must crash-land
Verbe régulier : crash-land - crash-landed- crash-landed
Traduction française : faire un atterrissage forcé - poser ou faire atterrir en catastrophe 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must crash-land
you must crash-land
he must crash-land
we must crash-land
you must crash-land
they must crash-land 	I must be crash-landing
you must be crash-landing
he must be crash-landing
we must be crash-landing
you must be crash-landing
they must be crash-landing	I must have crash-landed
you must have crash-landed
he must have crash-landed
we must have crash-landed
you must have crash-landed
they must have crash-landed	I must have been crash-landing
you must have been crash-landing
he must have been crash-landing
we must have been crash-landing
you must have been crash-landing
they must have been crash-landing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't crash-land
you mustn't crash-land
he mustn't crash-land
we mustn't crash-land
you mustn't crash-land
they mustn't crash-land 	I mustn't be crash-landing
you mustn't be crash-landing
he mustn't be crash-landing
we mustn't be crash-landing
you mustn't be crash-landing
they mustn't be crash-landing	I mustn't have crash-landed
you mustn't have crash-landed
he mustn't have crash-landed
we mustn't have crash-landed
you mustn't have crash-landed
they mustn't have crash-landed	I mustn't have been crash-landing
you mustn't have been crash-landing
he mustn't have been crash-landing
we mustn't have been crash-landing
you mustn't have been crash-landing
they mustn't have been crash-landing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I crash-land?
must you crash-land?
must he crash-land?
must we crash-land?
must you crash-land?
must they crash-land? 	must I be crash-landing?
must you be crash-landing?
must he be crash-landing?
must we be crash-landing?
must you be crash-landing?
must they be crash-landing? 	must I have crash-landed?
must you have crash-landed?
must he have crash-landed?
must we have crash-landed?
must you have crash-landed?
must they have crash-landed? 	must I have been crash-landing?
must you have been crash-landing?
must he have been crash-landing?
must we have been crash-landing?
must you have been crash-landing?
must they have been crash-landing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I crash-land?
mustn't you crash-land?
mustn't he crash-land?
mustn't we crash-land?
mustn't you crash-land?
mustn't they crash-land? 	mustn't I be crash-landing?
mustn't you be crash-landing?
mustn't he be crash-landing?
mustn't we be crash-landing?
mustn't you be crash-landing?
mustn't they be crash-landing? 	mustn't I have crash-landed?
mustn't you have crash-landed?
mustn't he have crash-landed?
mustn't we have crash-landed?
mustn't you have crash-landed?
mustn't they have crash-landed? 	mustn't I have been crash-landing?
mustn't you have been crash-landing?
mustn't he have been crash-landing?
mustn't we have been crash-landing?
mustn't you have been crash-landing?
mustn't they have been crash-landing?