I must butylate you must butylate he must butylate we must butylate you must butylate they must butylate
Forme en V-ing
I must be butylating you must be butylating he must be butylating we must be butylating you must be butylating they must be butylating
Perfect
I must have butylated you must have butylated he must have butylated we must have butylated you must have butylated they must have butylated
Perfect en V-ing
I must have been butylating you must have been butylating he must have been butylating we must have been butylating you must have been butylating they must have been butylating
Négation
Forme simple
I mustn't butylate you mustn't butylate he mustn't butylate we mustn't butylate you mustn't butylate they mustn't butylate
Forme en V-ing
I mustn't be butylating you mustn't be butylating he mustn't be butylating we mustn't be butylating you mustn't be butylating they mustn't be butylating
Perfect
I mustn't have butylated you mustn't have butylated he mustn't have butylated we mustn't have butylated you mustn't have butylated they mustn't have butylated
Perfect en V-ing
I mustn't have been butylating you mustn't have been butylating he mustn't have been butylating we mustn't have been butylating you mustn't have been butylating they mustn't have been butylating
Forme interrogative
Forme simple
must I butylate? must you butylate? must he butylate? must we butylate? must you butylate? must they butylate?
Forme en V-ing
must I be butylating? must you be butylating? must he be butylating? must we be butylating? must you be butylating? must they be butylating?
Perfect
must I have butylated? must you have butylated? must he have butylated? must we have butylated? must you have butylated? must they have butylated?
Perfect en V-ing
must I have been butylating? must you have been butylating? must he have been butylating? must we have been butylating? must you have been butylating? must they have been butylating?
Forme interro-négative
Forme simple
mustn't I butylate? mustn't you butylate? mustn't he butylate? mustn't we butylate? mustn't you butylate? mustn't they butylate?
Forme en V-ing
mustn't I be butylating? mustn't you be butylating? mustn't he be butylating? mustn't we be butylating? mustn't you be butylating? mustn't they be butylating?
Perfect
mustn't I have butylated? mustn't you have butylated? mustn't he have butylated? mustn't we have butylated? mustn't you have butylated? mustn't they have butylated?
Perfect en V-ing
mustn't I have been butylating? mustn't you have been butylating? mustn't he have been butylating? mustn't we have been butylating? mustn't you have been butylating? mustn't they have been butylating?