In the first issue of the Journal of Greek Linguistics this year (2017), Klaas Bentein examined changes in the way verbal complements were formed between the Classical and Byzantine periods. Here’s what the abstract of his paper says:
While Classical Greek has a particularly rich complementation system, in later times there is a tendency towards the use of finite complementation. In this context, Cristofaro (1996) has claimed that the Classical opposition whereby the accusative and infinitive is used for non-factive complements, and ὅτι with the indicative and the accusative and participle for factive ones, is disappearing, ὅτι being used as a ‘generic’ complementiser. In this article, I investigate to what extent Cristofaro’s (1996) claim of the pragmatic neutralisation of complementation patterns can be upheld, and whether it could be claimed that a new pragmatic opposition, in terms of ‘register’, is being established. For this purpose, I turn towards documentary papyri, a corpus which is particularly fruitful for socio-historical investigations.
You can read this paper here. I have added it to the Comprehensive Bibliography of Hellenistic Greek Linguistics.