must spur
Verbe régulier : spur - spurred- spurred
Traduction française : éperonner - inciter 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must spur
you must spur
she must spur
we must spur
you must spur
they must spur 	I must be spurring
you must be spurring
she must be spurring
we must be spurring
you must be spurring
they must be spurring	I must have spurred
you must have spurred
she must have spurred
we must have spurred
you must have spurred
they must have spurred	I must have been spurring
you must have been spurring
she must have been spurring
we must have been spurring
you must have been spurring
they must have been spurring	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't spur
you mustn't spur
she mustn't spur
we mustn't spur
you mustn't spur
they mustn't spur 	I mustn't be spurring
you mustn't be spurring
she mustn't be spurring
we mustn't be spurring
you mustn't be spurring
they mustn't be spurring	I mustn't have spurred
you mustn't have spurred
she mustn't have spurred
we mustn't have spurred
you mustn't have spurred
they mustn't have spurred	I mustn't have been spurring
you mustn't have been spurring
she mustn't have been spurring
we mustn't have been spurring
you mustn't have been spurring
they mustn't have been spurring	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I spur?
must you spur?
must she spur?
must we spur?
must you spur?
must they spur? 	must I be spurring?
must you be spurring?
must she be spurring?
must we be spurring?
must you be spurring?
must they be spurring? 	must I have spurred?
must you have spurred?
must she have spurred?
must we have spurred?
must you have spurred?
must they have spurred? 	must I have been spurring?
must you have been spurring?
must she have been spurring?
must we have been spurring?
must you have been spurring?
must they have been spurring? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I spur?
mustn't you spur?
mustn't she spur?
mustn't we spur?
mustn't you spur?
mustn't they spur? 	mustn't I be spurring?
mustn't you be spurring?
mustn't she be spurring?
mustn't we be spurring?
mustn't you be spurring?
mustn't they be spurring? 	mustn't I have spurred?
mustn't you have spurred?
mustn't she have spurred?
mustn't we have spurred?
mustn't you have spurred?
mustn't they have spurred? 	mustn't I have been spurring?
mustn't you have been spurring?
mustn't she have been spurring?
mustn't we have been spurring?
mustn't you have been spurring?
mustn't they have been spurring?