Alternation between two overt markers on direct objects

[Colleen A Ahland]

 Dear Giorgio et al.,

 Note that in Gerritt Dimmendaal's 2010 article "Differential Object 
 Marking in Nilo-Saharan", he deals with two N-S languages - Fur and 
 Kunama - each of which have two distinct (overt) accusative case 
 markers.  Thus, it seems DOM is not always used to refer to the presence 
 vs. absence of a case marker.

 Colleen Ahland
 On Wed, 30 Nov 2011 17:29:10 +0100, Giorgio Iemmolo wrote:
> Dear all,
>
> I am writing to inquire whether anyone on this list is aware of
> languages where direct objects exhibit an alternation between two (or
> more) overt case markers.
> Examples of such languages are Finnic languages (Finnish, Estonian,
> Karelian, etc.) quite a few Indo-European languages (Russian, Polish,
> Ancient Greek, Vedic, etc.), and a few Polynesian languages (Samoan,
> Tongan, etc.), where there is an alternation i) between accusative 
> and
> partitive/genitive or ii) between two overt markers, depending on a
> variety of factors, such as event (un)boundedness, polarity,
> affectedness, quantification.
>
> My general impression is that such an alternation in direct object
> encoding is fairly rare cross-linguistically. So if anybody is
> familiar with examples of languages where this pattern is found and 
> is
> not limited to just a handful of verbs, please let me know. I would 
> be
> very grateful.
>
> Thank you very much in advance,
>
> Giorgio Iemmolo