I can double you can double he can double we can double you can double they can double
Forme en V-ing
I can be doubling you can be doubling he can be doubling we can be doubling you can be doubling they can be doubling
Perfect
I can have doubled you can have doubled he can have doubled we can have doubled you can have doubled they can have doubled
Perfect en V-ing
I can have been doubling you can have been doubling he can have been doubling we can have been doubling you can have been doubling they can have been doubling
Négation
Forme simple
I cannot double you cannot double he cannot double we cannot double you cannot double they cannot double
Forme en V-ing
I cannot be doubling you cannot be doubling he cannot be doubling we cannot be doubling you cannot be doubling they cannot be doubling
Perfect
I cannot have doubled you cannot have doubled he cannot have doubled we cannot have doubled you cannot have doubled they cannot have doubled
Perfect en V-ing
I cannot have been doubling you cannot have been doubling he cannot have been doubling we cannot have been doubling you cannot have been doubling they cannot have been doubling
Forme interrogative
Forme simple
can I double? can you double? can he double? can we double? can you double? can they double?
Forme en V-ing
can I be doubling? can you be doubling? can he be doubling? can we be doubling? can you be doubling? can they be doubling?
Perfect
can I have doubled? can you have doubled? can he have doubled? can we have doubled? can you have doubled? can they have doubled?
Perfect en V-ing
can I have been doubling? can you have been doubling? can he have been doubling? can we have been doubling? can you have been doubling? can they have been doubling?
Forme interro-négative
Forme simple
can I not double? can you not double? can he not double? can we not double? can you not double? can they not double?
Forme en V-ing
can I not be doubling? can you not be doubling? can he not be doubling? can we not be doubling? can you not be doubling? can they not be doubling?
Perfect
can I not have doubled? can you not have doubled? can he not have doubled? can we not have doubled? can you not have doubled? can they not have doubled?
Perfect en V-ing
can I not have been doubling? can you not have been doubling? can he not have been doubling? can we not have been doubling? can you not have been doubling? can they not have been doubling?