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