In Dutch V-final clauses the verbs tend to form a cluster which cannot be split up by nonverbal \nmaterial. However, Haeseryn et al. (1997) as well as other studies on the phenomenon list several \ncases in which the verb cluster may be interrupted by \ncluster creepers. \nThe most common examples are constructions with separable verb particles, but examples with nouns, adjectives, and adverbs are attested as well. \nSince the majority of the data in previous studies is collected by introspection and elicitation, \nit is interesting to compare those findings to corpus data. The corpus analysis is based on data \nfrom two Dutch treebanks (CGN and LASSY), which allow to take into account regional and/or \nstylistic variation. This is an important aspect for the analysis, since cluster creeping is reported \nto be a typical property of spoken and regional variants of Dutch. \nThe goal of this corpus-based investigation is on the one hand to provide insight in the frequency \nof the phenomenon, and on the other hand to classify the types of cluster creepers. Besides the \nlinguistic analysis, methodological issues regarding the extraction of the relevant data from the \ntreebanks will be addressed as well.