Clause-final verb clusters are by non-verbal constituents such as copula predicates (e.g.(1a)), direct objects(e.g. (1b)), object complementives , verbal particles (e.g.(1c)) and adverbials (e.g. 1d)), otherwise precede or in some cases follow the verb cluster in the preferential ordering. When nominals permeate the cluster, they are restricted to generic or mass nouns (e.g. (1b)). In some instances permeation seems to depend on the weight of the particle or phrase. Adverbs permeate more easily than adverbial phrases, and adverbs of manner, time, etc. more easily than prepositional phrases. Note that in some instances, such as the verbal particle in (1c), the permeated form may be more common than its non-permeated counterpart.