must brittle
Verbe régulier : brittle - brittled- brittled

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must brittle
you must brittle
she must brittle
we must brittle
you must brittle
they must brittle 	I must be brittling
you must be brittling
she must be brittling
we must be brittling
you must be brittling
they must be brittling	I must have brittled
you must have brittled
she must have brittled
we must have brittled
you must have brittled
they must have brittled	I must have been brittling
you must have been brittling
she must have been brittling
we must have been brittling
you must have been brittling
they must have been brittling	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not brittle
you must not brittle
she must not brittle
we must not brittle
you must not brittle
they must not brittle 	I must not be brittling
you must not be brittling
she must not be brittling
we must not be brittling
you must not be brittling
they must not be brittling	I must not have brittled
you must not have brittled
she must not have brittled
we must not have brittled
you must not have brittled
they must not have brittled	I must not have been brittling
you must not have been brittling
she must not have been brittling
we must not have been brittling
you must not have been brittling
they must not have been brittling	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I brittle?
must you brittle?
must she brittle?
must we brittle?
must you brittle?
must they brittle? 	must I be brittling?
must you be brittling?
must she be brittling?
must we be brittling?
must you be brittling?
must they be brittling? 	must I have brittled?
must you have brittled?
must she have brittled?
must we have brittled?
must you have brittled?
must they have brittled? 	must I have been brittling?
must you have been brittling?
must she have been brittling?
must we have been brittling?
must you have been brittling?
must they have been brittling? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not brittle?
must you not brittle?
must she not brittle?
must we not brittle?
must you not brittle?
must they not brittle? 	must I not be brittling?
must you not be brittling?
must she not be brittling?
must we not be brittling?
must you not be brittling?
must they not be brittling? 	must I not have brittled?
must you not have brittled?
must she not have brittled?
must we not have brittled?
must you not have brittled?
must they not have brittled? 	must I not have been brittling?
must you not have been brittling?
must she not have been brittling?
must we not have been brittling?
must you not have been brittling?
must they not have been brittling?