must undulate
Verbe régulier : undulate - undulated- undulated
Traduction française : onduler 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must undulate
you must undulate
she must undulate
we must undulate
you must undulate
they must undulate 	I must be undulating
you must be undulating
she must be undulating
we must be undulating
you must be undulating
they must be undulating	I must have undulated
you must have undulated
she must have undulated
we must have undulated
you must have undulated
they must have undulated	I must have been undulating
you must have been undulating
she must have been undulating
we must have been undulating
you must have been undulating
they must have been undulating	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't undulate
you mustn't undulate
she mustn't undulate
we mustn't undulate
you mustn't undulate
they mustn't undulate 	I mustn't be undulating
you mustn't be undulating
she mustn't be undulating
we mustn't be undulating
you mustn't be undulating
they mustn't be undulating	I mustn't have undulated
you mustn't have undulated
she mustn't have undulated
we mustn't have undulated
you mustn't have undulated
they mustn't have undulated	I mustn't have been undulating
you mustn't have been undulating
she mustn't have been undulating
we mustn't have been undulating
you mustn't have been undulating
they mustn't have been undulating	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I undulate?
must you undulate?
must she undulate?
must we undulate?
must you undulate?
must they undulate? 	must I be undulating?
must you be undulating?
must she be undulating?
must we be undulating?
must you be undulating?
must they be undulating? 	must I have undulated?
must you have undulated?
must she have undulated?
must we have undulated?
must you have undulated?
must they have undulated? 	must I have been undulating?
must you have been undulating?
must she have been undulating?
must we have been undulating?
must you have been undulating?
must they have been undulating? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I undulate?
mustn't you undulate?
mustn't she undulate?
mustn't we undulate?
mustn't you undulate?
mustn't they undulate? 	mustn't I be undulating?
mustn't you be undulating?
mustn't she be undulating?
mustn't we be undulating?
mustn't you be undulating?
mustn't they be undulating? 	mustn't I have undulated?
mustn't you have undulated?
mustn't she have undulated?
mustn't we have undulated?
mustn't you have undulated?
mustn't they have undulated? 	mustn't I have been undulating?
mustn't you have been undulating?
mustn't she have been undulating?
mustn't we have been undulating?
mustn't you have been undulating?
mustn't they have been undulating?