I must cross-multiply you must cross-multiply he must cross-multiply we must cross-multiply you must cross-multiply they must cross-multiply
Forme en V-ing
I must be cross-multiplying you must be cross-multiplying he must be cross-multiplying we must be cross-multiplying you must be cross-multiplying they must be cross-multiplying
Perfect
I must have cross-multiplied you must have cross-multiplied he must have cross-multiplied we must have cross-multiplied you must have cross-multiplied they must have cross-multiplied
Perfect en V-ing
I must have been cross-multiplying you must have been cross-multiplying he must have been cross-multiplying we must have been cross-multiplying you must have been cross-multiplying they must have been cross-multiplying
Négation
Forme simple
I mustn't cross-multiply you mustn't cross-multiply he mustn't cross-multiply we mustn't cross-multiply you mustn't cross-multiply they mustn't cross-multiply
Forme en V-ing
I mustn't be cross-multiplying you mustn't be cross-multiplying he mustn't be cross-multiplying we mustn't be cross-multiplying you mustn't be cross-multiplying they mustn't be cross-multiplying
Perfect
I mustn't have cross-multiplied you mustn't have cross-multiplied he mustn't have cross-multiplied we mustn't have cross-multiplied you mustn't have cross-multiplied they mustn't have cross-multiplied
Perfect en V-ing
I mustn't have been cross-multiplying you mustn't have been cross-multiplying he mustn't have been cross-multiplying we mustn't have been cross-multiplying you mustn't have been cross-multiplying they mustn't have been cross-multiplying
Forme interrogative
Forme simple
must I cross-multiply? must you cross-multiply? must he cross-multiply? must we cross-multiply? must you cross-multiply? must they cross-multiply?
Forme en V-ing
must I be cross-multiplying? must you be cross-multiplying? must he be cross-multiplying? must we be cross-multiplying? must you be cross-multiplying? must they be cross-multiplying?
Perfect
must I have cross-multiplied? must you have cross-multiplied? must he have cross-multiplied? must we have cross-multiplied? must you have cross-multiplied? must they have cross-multiplied?
Perfect en V-ing
must I have been cross-multiplying? must you have been cross-multiplying? must he have been cross-multiplying? must we have been cross-multiplying? must you have been cross-multiplying? must they have been cross-multiplying?
Forme interro-négative
Forme simple
mustn't I cross-multiply? mustn't you cross-multiply? mustn't he cross-multiply? mustn't we cross-multiply? mustn't you cross-multiply? mustn't they cross-multiply?
Forme en V-ing
mustn't I be cross-multiplying? mustn't you be cross-multiplying? mustn't he be cross-multiplying? mustn't we be cross-multiplying? mustn't you be cross-multiplying? mustn't they be cross-multiplying?
Perfect
mustn't I have cross-multiplied? mustn't you have cross-multiplied? mustn't he have cross-multiplied? mustn't we have cross-multiplied? mustn't you have cross-multiplied? mustn't they have cross-multiplied?
Perfect en V-ing
mustn't I have been cross-multiplying? mustn't you have been cross-multiplying? mustn't he have been cross-multiplying? mustn't we have been cross-multiplying? mustn't you have been cross-multiplying? mustn't they have been cross-multiplying?