Every 10 years there seems to be a new wave of dissertations on Dutch verb clusters.The special properties of the Dutch verbal end group have been keeping Dutch linguists employed since at least the 50s, and are still leading to new insights into language syntax and language variation.In the mid '90s the interest was mainly in novel theoretical syntactic analyses of the phenomenon, and in the mid '00s several dissertations came out on the wide range of factors that allow the word order variation to occur.Now, in the mid '10s, another round of dissertations is set to appear or have already appeared, including Liesbeth Augustinus's study on cluster formation.The current wave appears to be all about describing and studying the scope of the variation that occurs when people use verb clusters, both in dialects and in standard Dutch.The range of variation appears to be broader than what was previously thought.The likely reason behind this direction of study is the increased availability of Dutch linguistic resources, such as digital dialect atlases and large language corpora, making it easier to study large amounts of empirical data.Liesbeth Augustinus's study, though mostly focusing on standard Dutch, exemplifies this approach.The study is corpus-based throughout, featuring language usage data extracted from a treebank (a corpus of Dutch, annotated with syntactic trees).Furthermore, the study not only discusses standard verb clusters, it also addresses various (though not all) less frequent verb cluster constructions.Clusters with te-infinitives for example, and 'cluster creepers' where the verb cluster is interrupted by non-verbal materials, and Infinitivus Pro Participio (IPP) constructions involving uncommon IPP verbs, where a verb that takes an infinitive appears in participial form instead of as an infinitive.In this way, a wide range of verb cluster variation is addressed and incorporated into the theoretical discussion.A quick look at the table of contents shows that this is quite an interdisciplinary affair.On the one hand there are more theoretical chapters, involving both transformational grammar, the framework in which most previous work has been conducted, as well as monostratal grammarmainly Head-driven Phrase Structure Grammar (HPSG), the formal framework that Liesbeth Augustinus uses.