must creak
Verbe régulier : creak - creaked- creaked
Traduction française : craquer - grincer 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must creak
you must creak
he must creak
we must creak
you must creak
they must creak 	I must be creaking
you must be creaking
he must be creaking
we must be creaking
you must be creaking
they must be creaking	I must have creaked
you must have creaked
he must have creaked
we must have creaked
you must have creaked
they must have creaked	I must have been creaking
you must have been creaking
he must have been creaking
we must have been creaking
you must have been creaking
they must have been creaking	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not creak
you must not creak
he must not creak
we must not creak
you must not creak
they must not creak 	I must not be creaking
you must not be creaking
he must not be creaking
we must not be creaking
you must not be creaking
they must not be creaking	I must not have creaked
you must not have creaked
he must not have creaked
we must not have creaked
you must not have creaked
they must not have creaked	I must not have been creaking
you must not have been creaking
he must not have been creaking
we must not have been creaking
you must not have been creaking
they must not have been creaking	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I creak?
must you creak?
must he creak?
must we creak?
must you creak?
must they creak? 	must I be creaking?
must you be creaking?
must he be creaking?
must we be creaking?
must you be creaking?
must they be creaking? 	must I have creaked?
must you have creaked?
must he have creaked?
must we have creaked?
must you have creaked?
must they have creaked? 	must I have been creaking?
must you have been creaking?
must he have been creaking?
must we have been creaking?
must you have been creaking?
must they have been creaking? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not creak?
must you not creak?
must he not creak?
must we not creak?
must you not creak?
must they not creak? 	must I not be creaking?
must you not be creaking?
must he not be creaking?
must we not be creaking?
must you not be creaking?
must they not be creaking? 	must I not have creaked?
must you not have creaked?
must he not have creaked?
must we not have creaked?
must you not have creaked?
must they not have creaked? 	must I not have been creaking?
must you not have been creaking?
must he not have been creaking?
must we not have been creaking?
must you not have been creaking?
must they not have been creaking?