must cross-section
Verbe régulier : cross-section - cross-sectioned- cross-sectioned

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must cross-section
you must cross-section
she must cross-section
we must cross-section
you must cross-section
they must cross-section 	I must be cross-sectioning
you must be cross-sectioning
she must be cross-sectioning
we must be cross-sectioning
you must be cross-sectioning
they must be cross-sectioning	I must have cross-sectioned
you must have cross-sectioned
she must have cross-sectioned
we must have cross-sectioned
you must have cross-sectioned
they must have cross-sectioned	I must have been cross-sectioning
you must have been cross-sectioning
she must have been cross-sectioning
we must have been cross-sectioning
you must have been cross-sectioning
they must have been cross-sectioning	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't cross-section
you mustn't cross-section
she mustn't cross-section
we mustn't cross-section
you mustn't cross-section
they mustn't cross-section 	I mustn't be cross-sectioning
you mustn't be cross-sectioning
she mustn't be cross-sectioning
we mustn't be cross-sectioning
you mustn't be cross-sectioning
they mustn't be cross-sectioning	I mustn't have cross-sectioned
you mustn't have cross-sectioned
she mustn't have cross-sectioned
we mustn't have cross-sectioned
you mustn't have cross-sectioned
they mustn't have cross-sectioned	I mustn't have been cross-sectioning
you mustn't have been cross-sectioning
she mustn't have been cross-sectioning
we mustn't have been cross-sectioning
you mustn't have been cross-sectioning
they mustn't have been cross-sectioning	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I cross-section?
must you cross-section?
must she cross-section?
must we cross-section?
must you cross-section?
must they cross-section? 	must I be cross-sectioning?
must you be cross-sectioning?
must she be cross-sectioning?
must we be cross-sectioning?
must you be cross-sectioning?
must they be cross-sectioning? 	must I have cross-sectioned?
must you have cross-sectioned?
must she have cross-sectioned?
must we have cross-sectioned?
must you have cross-sectioned?
must they have cross-sectioned? 	must I have been cross-sectioning?
must you have been cross-sectioning?
must she have been cross-sectioning?
must we have been cross-sectioning?
must you have been cross-sectioning?
must they have been cross-sectioning? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I cross-section?
mustn't you cross-section?
mustn't she cross-section?
mustn't we cross-section?
mustn't you cross-section?
mustn't they cross-section? 	mustn't I be cross-sectioning?
mustn't you be cross-sectioning?
mustn't she be cross-sectioning?
mustn't we be cross-sectioning?
mustn't you be cross-sectioning?
mustn't they be cross-sectioning? 	mustn't I have cross-sectioned?
mustn't you have cross-sectioned?
mustn't she have cross-sectioned?
mustn't we have cross-sectioned?
mustn't you have cross-sectioned?
mustn't they have cross-sectioned? 	mustn't I have been cross-sectioning?
mustn't you have been cross-sectioning?
mustn't she have been cross-sectioning?
mustn't we have been cross-sectioning?
mustn't you have been cross-sectioning?
mustn't they have been cross-sectioning?