Conjugaison du verbe anglais
MUST YACK

Verbe régulier : yack - yacked - yacked

Affirmation

Forme simple	Forme en V-ing
I must yack you must yack she must yack we must yack you must yack they must yack	I must be yacking you must be yacking she must be yacking we must be yacking you must be yacking they must be yacking
Perfect	Perfect en V-ing
I must have yacked you must have yacked she must have yacked we must have yacked you must have yacked they must have yacked	I must have been yacking you must have been yacking she must have been yacking we must have been yacking you must have been yacking they must have been yacking

Négation

Forme simple	Forme en V-ing
I mustn't yack you mustn't yack she mustn't yack we mustn't yack you mustn't yack they mustn't yack	I mustn't be yacking you mustn't be yacking she mustn't be yacking we mustn't be yacking you mustn't be yacking they mustn't be yacking
Perfect	Perfect en V-ing
I mustn't have yacked you mustn't have yacked she mustn't have yacked we mustn't have yacked you mustn't have yacked they mustn't have yacked	I mustn't have been yacking you mustn't have been yacking she mustn't have been yacking we mustn't have been yacking you mustn't have been yacking they mustn't have been yacking

Forme interrogative

Forme simple	Forme en V-ing
must I yack? must you yack? must she yack? must we yack? must you yack? must they yack?	must I be yacking? must you be yacking? must she be yacking? must we be yacking? must you be yacking? must they be yacking?
Perfect	Perfect en V-ing
must I have yacked? must you have yacked? must she have yacked? must we have yacked? must you have yacked? must they have yacked?	must I have been yacking? must you have been yacking? must she have been yacking? must we have been yacking? must you have been yacking? must they have been yacking?

Forme interro-négative

Forme simple	Forme en V-ing
mustn't I yack? mustn't you yack? mustn't she yack? mustn't we yack? mustn't you yack? mustn't they yack?	mustn't I be yacking? mustn't you be yacking? mustn't she be yacking? mustn't we be yacking? mustn't you be yacking? mustn't they be yacking?
Perfect	Perfect en V-ing
mustn't I have yacked? mustn't you have yacked? mustn't she have yacked? mustn't we have yacked? mustn't you have yacked? mustn't they have yacked?	mustn't I have been yacking? mustn't you have been yacking? mustn't she have been yacking? mustn't we have been yacking? mustn't you have been yacking? mustn't they have been yacking?