Case 2 and three are different only in that you can emphasize them with commas, but syntactically they all are the same thing: coordinated sentences with ellipsis. It seems that conjunction reduction and right node raising are terms in syntactical theory for at least some presentations of the phenomenon (I do not know their exact equivalent, if any, in French).
Grevisse (Bon Usage, 14th ed.) discuss these in §269. But there’s really not much to say as that particular feature of syntax is pretty much universal amongst languages:
Quand, dans des termes coordonnés, il y a des éléments identiques, la tendance naturelle est de ne pas répéter ces éléments communs.
Leave a comment