must thwart
Verbe régulier : thwart - thwarted- thwarted
Traduction française : contrecarrer - contrarier les efforts de 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must thwart
you must thwart
he must thwart
we must thwart
you must thwart
they must thwart 	I must be thwarting
you must be thwarting
he must be thwarting
we must be thwarting
you must be thwarting
they must be thwarting	I must have thwarted
you must have thwarted
he must have thwarted
we must have thwarted
you must have thwarted
they must have thwarted	I must have been thwarting
you must have been thwarting
he must have been thwarting
we must have been thwarting
you must have been thwarting
they must have been thwarting	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't thwart
you mustn't thwart
he mustn't thwart
we mustn't thwart
you mustn't thwart
they mustn't thwart 	I mustn't be thwarting
you mustn't be thwarting
he mustn't be thwarting
we mustn't be thwarting
you mustn't be thwarting
they mustn't be thwarting	I mustn't have thwarted
you mustn't have thwarted
he mustn't have thwarted
we mustn't have thwarted
you mustn't have thwarted
they mustn't have thwarted	I mustn't have been thwarting
you mustn't have been thwarting
he mustn't have been thwarting
we mustn't have been thwarting
you mustn't have been thwarting
they mustn't have been thwarting	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I thwart?
must you thwart?
must he thwart?
must we thwart?
must you thwart?
must they thwart? 	must I be thwarting?
must you be thwarting?
must he be thwarting?
must we be thwarting?
must you be thwarting?
must they be thwarting? 	must I have thwarted?
must you have thwarted?
must he have thwarted?
must we have thwarted?
must you have thwarted?
must they have thwarted? 	must I have been thwarting?
must you have been thwarting?
must he have been thwarting?
must we have been thwarting?
must you have been thwarting?
must they have been thwarting? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I thwart?
mustn't you thwart?
mustn't he thwart?
mustn't we thwart?
mustn't you thwart?
mustn't they thwart? 	mustn't I be thwarting?
mustn't you be thwarting?
mustn't he be thwarting?
mustn't we be thwarting?
mustn't you be thwarting?
mustn't they be thwarting? 	mustn't I have thwarted?
mustn't you have thwarted?
mustn't he have thwarted?
mustn't we have thwarted?
mustn't you have thwarted?
mustn't they have thwarted? 	mustn't I have been thwarting?
mustn't you have been thwarting?
mustn't he have been thwarting?
mustn't we have been thwarting?
mustn't you have been thwarting?
mustn't they have been thwarting?