must spall
Verbe régulier : spall - spalled- spalled

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must spall
you must spall
he must spall
we must spall
you must spall
they must spall 	I must be spalling
you must be spalling
he must be spalling
we must be spalling
you must be spalling
they must be spalling	I must have spalled
you must have spalled
he must have spalled
we must have spalled
you must have spalled
they must have spalled	I must have been spalling
you must have been spalling
he must have been spalling
we must have been spalling
you must have been spalling
they must have been spalling	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't spall
you mustn't spall
he mustn't spall
we mustn't spall
you mustn't spall
they mustn't spall 	I mustn't be spalling
you mustn't be spalling
he mustn't be spalling
we mustn't be spalling
you mustn't be spalling
they mustn't be spalling	I mustn't have spalled
you mustn't have spalled
he mustn't have spalled
we mustn't have spalled
you mustn't have spalled
they mustn't have spalled	I mustn't have been spalling
you mustn't have been spalling
he mustn't have been spalling
we mustn't have been spalling
you mustn't have been spalling
they mustn't have been spalling	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I spall?
must you spall?
must he spall?
must we spall?
must you spall?
must they spall? 	must I be spalling?
must you be spalling?
must he be spalling?
must we be spalling?
must you be spalling?
must they be spalling? 	must I have spalled?
must you have spalled?
must he have spalled?
must we have spalled?
must you have spalled?
must they have spalled? 	must I have been spalling?
must you have been spalling?
must he have been spalling?
must we have been spalling?
must you have been spalling?
must they have been spalling? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I spall?
mustn't you spall?
mustn't he spall?
mustn't we spall?
mustn't you spall?
mustn't they spall? 	mustn't I be spalling?
mustn't you be spalling?
mustn't he be spalling?
mustn't we be spalling?
mustn't you be spalling?
mustn't they be spalling? 	mustn't I have spalled?
mustn't you have spalled?
mustn't he have spalled?
mustn't we have spalled?
mustn't you have spalled?
mustn't they have spalled? 	mustn't I have been spalling?
mustn't you have been spalling?
mustn't he have been spalling?
mustn't we have been spalling?
mustn't you have been spalling?
mustn't they have been spalling?