must lance
Verbe régulier : lance - lanced- lanced
Traduction française : percer - inciser 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must lance
you must lance
he must lance
we must lance
you must lance
they must lance 	I must be lancing
you must be lancing
he must be lancing
we must be lancing
you must be lancing
they must be lancing	I must have lanced
you must have lanced
he must have lanced
we must have lanced
you must have lanced
they must have lanced	I must have been lancing
you must have been lancing
he must have been lancing
we must have been lancing
you must have been lancing
they must have been lancing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't lance
you mustn't lance
he mustn't lance
we mustn't lance
you mustn't lance
they mustn't lance 	I mustn't be lancing
you mustn't be lancing
he mustn't be lancing
we mustn't be lancing
you mustn't be lancing
they mustn't be lancing	I mustn't have lanced
you mustn't have lanced
he mustn't have lanced
we mustn't have lanced
you mustn't have lanced
they mustn't have lanced	I mustn't have been lancing
you mustn't have been lancing
he mustn't have been lancing
we mustn't have been lancing
you mustn't have been lancing
they mustn't have been lancing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I lance?
must you lance?
must he lance?
must we lance?
must you lance?
must they lance? 	must I be lancing?
must you be lancing?
must he be lancing?
must we be lancing?
must you be lancing?
must they be lancing? 	must I have lanced?
must you have lanced?
must he have lanced?
must we have lanced?
must you have lanced?
must they have lanced? 	must I have been lancing?
must you have been lancing?
must he have been lancing?
must we have been lancing?
must you have been lancing?
must they have been lancing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I lance?
mustn't you lance?
mustn't he lance?
mustn't we lance?
mustn't you lance?
mustn't they lance? 	mustn't I be lancing?
mustn't you be lancing?
mustn't he be lancing?
mustn't we be lancing?
mustn't you be lancing?
mustn't they be lancing? 	mustn't I have lanced?
mustn't you have lanced?
mustn't he have lanced?
mustn't we have lanced?
mustn't you have lanced?
mustn't they have lanced? 	mustn't I have been lancing?
mustn't you have been lancing?
mustn't he have been lancing?
mustn't we have been lancing?
mustn't you have been lancing?
mustn't they have been lancing?