must flounder
Verbe régulier : flounder - floundered- floundered
Traduction française : patauger péniblement - perdre pied 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must flounder
you must flounder
he must flounder
we must flounder
you must flounder
they must flounder 	I must be floundering
you must be floundering
he must be floundering
we must be floundering
you must be floundering
they must be floundering	I must have floundered
you must have floundered
he must have floundered
we must have floundered
you must have floundered
they must have floundered	I must have been floundering
you must have been floundering
he must have been floundering
we must have been floundering
you must have been floundering
they must have been floundering	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not flounder
you must not flounder
he must not flounder
we must not flounder
you must not flounder
they must not flounder 	I must not be floundering
you must not be floundering
he must not be floundering
we must not be floundering
you must not be floundering
they must not be floundering	I must not have floundered
you must not have floundered
he must not have floundered
we must not have floundered
you must not have floundered
they must not have floundered	I must not have been floundering
you must not have been floundering
he must not have been floundering
we must not have been floundering
you must not have been floundering
they must not have been floundering	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I flounder?
must you flounder?
must he flounder?
must we flounder?
must you flounder?
must they flounder? 	must I be floundering?
must you be floundering?
must he be floundering?
must we be floundering?
must you be floundering?
must they be floundering? 	must I have floundered?
must you have floundered?
must he have floundered?
must we have floundered?
must you have floundered?
must they have floundered? 	must I have been floundering?
must you have been floundering?
must he have been floundering?
must we have been floundering?
must you have been floundering?
must they have been floundering? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not flounder?
must you not flounder?
must he not flounder?
must we not flounder?
must you not flounder?
must they not flounder? 	must I not be floundering?
must you not be floundering?
must he not be floundering?
must we not be floundering?
must you not be floundering?
must they not be floundering? 	must I not have floundered?
must you not have floundered?
must he not have floundered?
must we not have floundered?
must you not have floundered?
must they not have floundered? 	must I not have been floundering?
must you not have been floundering?
must he not have been floundering?
must we not have been floundering?
must you not have been floundering?
must they not have been floundering?