must bumble
Verbe régulier : bumble - bumbled- bumbled
Traduction française : bafouiller 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must bumble
you must bumble
she must bumble
we must bumble
you must bumble
they must bumble 	I must be bumbling
you must be bumbling
she must be bumbling
we must be bumbling
you must be bumbling
they must be bumbling	I must have bumbled
you must have bumbled
she must have bumbled
we must have bumbled
you must have bumbled
they must have bumbled	I must have been bumbling
you must have been bumbling
she must have been bumbling
we must have been bumbling
you must have been bumbling
they must have been bumbling	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't bumble
you mustn't bumble
she mustn't bumble
we mustn't bumble
you mustn't bumble
they mustn't bumble 	I mustn't be bumbling
you mustn't be bumbling
she mustn't be bumbling
we mustn't be bumbling
you mustn't be bumbling
they mustn't be bumbling	I mustn't have bumbled
you mustn't have bumbled
she mustn't have bumbled
we mustn't have bumbled
you mustn't have bumbled
they mustn't have bumbled	I mustn't have been bumbling
you mustn't have been bumbling
she mustn't have been bumbling
we mustn't have been bumbling
you mustn't have been bumbling
they mustn't have been bumbling	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I bumble?
must you bumble?
must she bumble?
must we bumble?
must you bumble?
must they bumble? 	must I be bumbling?
must you be bumbling?
must she be bumbling?
must we be bumbling?
must you be bumbling?
must they be bumbling? 	must I have bumbled?
must you have bumbled?
must she have bumbled?
must we have bumbled?
must you have bumbled?
must they have bumbled? 	must I have been bumbling?
must you have been bumbling?
must she have been bumbling?
must we have been bumbling?
must you have been bumbling?
must they have been bumbling? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I bumble?
mustn't you bumble?
mustn't she bumble?
mustn't we bumble?
mustn't you bumble?
mustn't they bumble? 	mustn't I be bumbling?
mustn't you be bumbling?
mustn't she be bumbling?
mustn't we be bumbling?
mustn't you be bumbling?
mustn't they be bumbling? 	mustn't I have bumbled?
mustn't you have bumbled?
mustn't she have bumbled?
mustn't we have bumbled?
mustn't you have bumbled?
mustn't they have bumbled? 	mustn't I have been bumbling?
mustn't you have been bumbling?
mustn't she have been bumbling?
mustn't we have been bumbling?
mustn't you have been bumbling?
mustn't they have been bumbling?