must yock
Verbe régulier : yock - yocked- yocked

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must yock
you must yock
he must yock
we must yock
you must yock
they must yock 	I must be yocking
you must be yocking
he must be yocking
we must be yocking
you must be yocking
they must be yocking	I must have yocked
you must have yocked
he must have yocked
we must have yocked
you must have yocked
they must have yocked	I must have been yocking
you must have been yocking
he must have been yocking
we must have been yocking
you must have been yocking
they must have been yocking	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't yock
you mustn't yock
he mustn't yock
we mustn't yock
you mustn't yock
they mustn't yock 	I mustn't be yocking
you mustn't be yocking
he mustn't be yocking
we mustn't be yocking
you mustn't be yocking
they mustn't be yocking	I mustn't have yocked
you mustn't have yocked
he mustn't have yocked
we mustn't have yocked
you mustn't have yocked
they mustn't have yocked	I mustn't have been yocking
you mustn't have been yocking
he mustn't have been yocking
we mustn't have been yocking
you mustn't have been yocking
they mustn't have been yocking	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I yock?
must you yock?
must he yock?
must we yock?
must you yock?
must they yock? 	must I be yocking?
must you be yocking?
must he be yocking?
must we be yocking?
must you be yocking?
must they be yocking? 	must I have yocked?
must you have yocked?
must he have yocked?
must we have yocked?
must you have yocked?
must they have yocked? 	must I have been yocking?
must you have been yocking?
must he have been yocking?
must we have been yocking?
must you have been yocking?
must they have been yocking? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I yock?
mustn't you yock?
mustn't he yock?
mustn't we yock?
mustn't you yock?
mustn't they yock? 	mustn't I be yocking?
mustn't you be yocking?
mustn't he be yocking?
mustn't we be yocking?
mustn't you be yocking?
mustn't they be yocking? 	mustn't I have yocked?
mustn't you have yocked?
mustn't he have yocked?
mustn't we have yocked?
mustn't you have yocked?
mustn't they have yocked? 	mustn't I have been yocking?
mustn't you have been yocking?
mustn't he have been yocking?
mustn't we have been yocking?
mustn't you have been yocking?
mustn't they have been yocking?