I must fertilise you must fertilise she must fertilise we must fertilise you must fertilise they must fertilise
Forme en V-ing
I must be fertilising you must be fertilising she must be fertilising we must be fertilising you must be fertilising they must be fertilising
Perfect
I must have fertilised you must have fertilised she must have fertilised we must have fertilised you must have fertilised they must have fertilised
Perfect en V-ing
I must have been fertilising you must have been fertilising she must have been fertilising we must have been fertilising you must have been fertilising they must have been fertilising
Négation
Forme simple
I mustn't fertilise you mustn't fertilise she mustn't fertilise we mustn't fertilise you mustn't fertilise they mustn't fertilise
Forme en V-ing
I mustn't be fertilising you mustn't be fertilising she mustn't be fertilising we mustn't be fertilising you mustn't be fertilising they mustn't be fertilising
Perfect
I mustn't have fertilised you mustn't have fertilised she mustn't have fertilised we mustn't have fertilised you mustn't have fertilised they mustn't have fertilised
Perfect en V-ing
I mustn't have been fertilising you mustn't have been fertilising she mustn't have been fertilising we mustn't have been fertilising you mustn't have been fertilising they mustn't have been fertilising
Forme interrogative
Forme simple
must I fertilise? must you fertilise? must she fertilise? must we fertilise? must you fertilise? must they fertilise?
Forme en V-ing
must I be fertilising? must you be fertilising? must she be fertilising? must we be fertilising? must you be fertilising? must they be fertilising?
Perfect
must I have fertilised? must you have fertilised? must she have fertilised? must we have fertilised? must you have fertilised? must they have fertilised?
Perfect en V-ing
must I have been fertilising? must you have been fertilising? must she have been fertilising? must we have been fertilising? must you have been fertilising? must they have been fertilising?
Forme interro-négative
Forme simple
mustn't I fertilise? mustn't you fertilise? mustn't she fertilise? mustn't we fertilise? mustn't you fertilise? mustn't they fertilise?
Forme en V-ing
mustn't I be fertilising? mustn't you be fertilising? mustn't she be fertilising? mustn't we be fertilising? mustn't you be fertilising? mustn't they be fertilising?
Perfect
mustn't I have fertilised? mustn't you have fertilised? mustn't she have fertilised? mustn't we have fertilised? mustn't you have fertilised? mustn't they have fertilised?
Perfect en V-ing
mustn't I have been fertilising? mustn't you have been fertilising? mustn't she have been fertilising? mustn't we have been fertilising? mustn't you have been fertilising? mustn't they have been fertilising?