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