must impearl
Verbe régulier : impearl - impearled- impearled

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must impearl
you must impearl
he must impearl
we must impearl
you must impearl
they must impearl 	I must be impearling
you must be impearling
he must be impearling
we must be impearling
you must be impearling
they must be impearling	I must have impearled
you must have impearled
he must have impearled
we must have impearled
you must have impearled
they must have impearled	I must have been impearling
you must have been impearling
he must have been impearling
we must have been impearling
you must have been impearling
they must have been impearling	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't impearl
you mustn't impearl
he mustn't impearl
we mustn't impearl
you mustn't impearl
they mustn't impearl 	I mustn't be impearling
you mustn't be impearling
he mustn't be impearling
we mustn't be impearling
you mustn't be impearling
they mustn't be impearling	I mustn't have impearled
you mustn't have impearled
he mustn't have impearled
we mustn't have impearled
you mustn't have impearled
they mustn't have impearled	I mustn't have been impearling
you mustn't have been impearling
he mustn't have been impearling
we mustn't have been impearling
you mustn't have been impearling
they mustn't have been impearling	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I impearl?
must you impearl?
must he impearl?
must we impearl?
must you impearl?
must they impearl? 	must I be impearling?
must you be impearling?
must he be impearling?
must we be impearling?
must you be impearling?
must they be impearling? 	must I have impearled?
must you have impearled?
must he have impearled?
must we have impearled?
must you have impearled?
must they have impearled? 	must I have been impearling?
must you have been impearling?
must he have been impearling?
must we have been impearling?
must you have been impearling?
must they have been impearling? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I impearl?
mustn't you impearl?
mustn't he impearl?
mustn't we impearl?
mustn't you impearl?
mustn't they impearl? 	mustn't I be impearling?
mustn't you be impearling?
mustn't he be impearling?
mustn't we be impearling?
mustn't you be impearling?
mustn't they be impearling? 	mustn't I have impearled?
mustn't you have impearled?
mustn't he have impearled?
mustn't we have impearled?
mustn't you have impearled?
mustn't they have impearled? 	mustn't I have been impearling?
mustn't you have been impearling?
mustn't he have been impearling?
mustn't we have been impearling?
mustn't you have been impearling?
mustn't they have been impearling?