must purl
Verbe régulier : purl - purled- purled
Traduction française : tricoter à l'envers 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must purl
you must purl
she must purl
we must purl
you must purl
they must purl 	I must be purling
you must be purling
she must be purling
we must be purling
you must be purling
they must be purling	I must have purled
you must have purled
she must have purled
we must have purled
you must have purled
they must have purled	I must have been purling
you must have been purling
she must have been purling
we must have been purling
you must have been purling
they must have been purling	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't purl
you mustn't purl
she mustn't purl
we mustn't purl
you mustn't purl
they mustn't purl 	I mustn't be purling
you mustn't be purling
she mustn't be purling
we mustn't be purling
you mustn't be purling
they mustn't be purling	I mustn't have purled
you mustn't have purled
she mustn't have purled
we mustn't have purled
you mustn't have purled
they mustn't have purled	I mustn't have been purling
you mustn't have been purling
she mustn't have been purling
we mustn't have been purling
you mustn't have been purling
they mustn't have been purling	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I purl?
must you purl?
must she purl?
must we purl?
must you purl?
must they purl? 	must I be purling?
must you be purling?
must she be purling?
must we be purling?
must you be purling?
must they be purling? 	must I have purled?
must you have purled?
must she have purled?
must we have purled?
must you have purled?
must they have purled? 	must I have been purling?
must you have been purling?
must she have been purling?
must we have been purling?
must you have been purling?
must they have been purling? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I purl?
mustn't you purl?
mustn't she purl?
mustn't we purl?
mustn't you purl?
mustn't they purl? 	mustn't I be purling?
mustn't you be purling?
mustn't she be purling?
mustn't we be purling?
mustn't you be purling?
mustn't they be purling? 	mustn't I have purled?
mustn't you have purled?
mustn't she have purled?
mustn't we have purled?
mustn't you have purled?
mustn't they have purled? 	mustn't I have been purling?
mustn't you have been purling?
mustn't she have been purling?
mustn't we have been purling?
mustn't you have been purling?
mustn't they have been purling?