The investigation of the syntactic structures of Hungarian, with emphasis on their morphological properties and relations, primarily within the generative framework of the minimalist program, and of Distributed Morphology.

The analysis of the syntactic structures of Mandarin Chinese, primarily within the framework of generative models of grammar. The investigations of the syntax-semantics interface, with emphasis on the patterns of adverbs and adverbial expressions.

Experimental explorations into the intonational patterns of Mandarin Chinese, and the interplay of tone and intonation, as reflected in their acquisition by Hungarian learners of Chinese as a foreign language.