I ought to cross-multiply you ought to cross-multiply she ought to cross-multiply we ought to cross-multiply you ought to cross-multiply they ought to cross-multiply
Forme en V-ing
I ought to be cross-multiplying you ought to be cross-multiplying she ought to be cross-multiplying we ought to be cross-multiplying you ought to be cross-multiplying they ought to be cross-multiplying
Perfect
I ought to have cross-multiplied you ought to have cross-multiplied she ought to have cross-multiplied we ought to have cross-multiplied you ought to have cross-multiplied they ought to have cross-multiplied
Perfect en V-ing
I ought to have been cross-multiplying you ought to have been cross-multiplying she ought to have been cross-multiplying we ought to have been cross-multiplying you ought to have been cross-multiplying they ought to have been cross-multiplying
Négation
Forme simple
I oughtn't to cross-multiply you oughtn't to cross-multiply she oughtn't to cross-multiply we oughtn't to cross-multiply you oughtn't to cross-multiply they oughtn't to cross-multiply
Forme en V-ing
I oughtn't to be cross-multiplying you oughtn't to be cross-multiplying she oughtn't to be cross-multiplying we oughtn't to be cross-multiplying you oughtn't to be cross-multiplying they oughtn't to be cross-multiplying
Perfect
I oughtn't to have cross-multiplied you oughtn't to have cross-multiplied she oughtn't to have cross-multiplied we oughtn't to have cross-multiplied you oughtn't to have cross-multiplied they oughtn't to have cross-multiplied
Perfect en V-ing
I oughtn't to have been cross-multiplying you oughtn't to have been cross-multiplying she oughtn't to have been cross-multiplying we oughtn't to have been cross-multiplying you oughtn't to have been cross-multiplying they oughtn't to have been cross-multiplying
Forme interrogative
Forme simple
ought to I cross-multiply? ought to you cross-multiply? ought to she cross-multiply? ought to we cross-multiply? ought to you cross-multiply? ought to they cross-multiply?
Forme en V-ing
ought to I be cross-multiplying? ought to you be cross-multiplying? ought to she be cross-multiplying? ought to we be cross-multiplying? ought to you be cross-multiplying? ought to they be cross-multiplying?
Perfect
ought to I have cross-multiplied? ought to you have cross-multiplied? ought to she have cross-multiplied? ought to we have cross-multiplied? ought to you have cross-multiplied? ought to they have cross-multiplied?
Perfect en V-ing
ought to I have been cross-multiplying? ought to you have been cross-multiplying? ought to she have been cross-multiplying? ought to we have been cross-multiplying? ought to you have been cross-multiplying? ought to they have been cross-multiplying?
Forme interro-négative
Forme simple
oughtn't I to cross-multiply? oughtn't you to cross-multiply? oughtn't she to cross-multiply? oughtn't we to cross-multiply? oughtn't you to cross-multiply? oughtn't they to cross-multiply?
Forme en V-ing
oughtn't I to be cross-multiplying? oughtn't you to be cross-multiplying? oughtn't she to be cross-multiplying? oughtn't we to be cross-multiplying? oughtn't you to be cross-multiplying? oughtn't they to be cross-multiplying?
Perfect
oughtn't I to have cross-multiplied? oughtn't you to have cross-multiplied? oughtn't she to have cross-multiplied? oughtn't we to have cross-multiplied? oughtn't you to have cross-multiplied? oughtn't they to have cross-multiplied?
Perfect en V-ing
oughtn't I to have been cross-multiplying? oughtn't you to have been cross-multiplying? oughtn't she to have been cross-multiplying? oughtn't we to have been cross-multiplying? oughtn't you to have been cross-multiplying? oughtn't they to have been cross-multiplying?