must sprig
Verbe régulier : sprig - sprigged- sprigged

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must sprig
you must sprig
she must sprig
we must sprig
you must sprig
they must sprig 	I must be sprigging
you must be sprigging
she must be sprigging
we must be sprigging
you must be sprigging
they must be sprigging	I must have sprigged
you must have sprigged
she must have sprigged
we must have sprigged
you must have sprigged
they must have sprigged	I must have been sprigging
you must have been sprigging
she must have been sprigging
we must have been sprigging
you must have been sprigging
they must have been sprigging	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't sprig
you mustn't sprig
she mustn't sprig
we mustn't sprig
you mustn't sprig
they mustn't sprig 	I mustn't be sprigging
you mustn't be sprigging
she mustn't be sprigging
we mustn't be sprigging
you mustn't be sprigging
they mustn't be sprigging	I mustn't have sprigged
you mustn't have sprigged
she mustn't have sprigged
we mustn't have sprigged
you mustn't have sprigged
they mustn't have sprigged	I mustn't have been sprigging
you mustn't have been sprigging
she mustn't have been sprigging
we mustn't have been sprigging
you mustn't have been sprigging
they mustn't have been sprigging	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I sprig?
must you sprig?
must she sprig?
must we sprig?
must you sprig?
must they sprig? 	must I be sprigging?
must you be sprigging?
must she be sprigging?
must we be sprigging?
must you be sprigging?
must they be sprigging? 	must I have sprigged?
must you have sprigged?
must she have sprigged?
must we have sprigged?
must you have sprigged?
must they have sprigged? 	must I have been sprigging?
must you have been sprigging?
must she have been sprigging?
must we have been sprigging?
must you have been sprigging?
must they have been sprigging? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I sprig?
mustn't you sprig?
mustn't she sprig?
mustn't we sprig?
mustn't you sprig?
mustn't they sprig? 	mustn't I be sprigging?
mustn't you be sprigging?
mustn't she be sprigging?
mustn't we be sprigging?
mustn't you be sprigging?
mustn't they be sprigging? 	mustn't I have sprigged?
mustn't you have sprigged?
mustn't she have sprigged?
mustn't we have sprigged?
mustn't you have sprigged?
mustn't they have sprigged? 	mustn't I have been sprigging?
mustn't you have been sprigging?
mustn't she have been sprigging?
mustn't we have been sprigging?
mustn't you have been sprigging?
mustn't they have been sprigging?