Halliday & Matthiessen (1999: 216):
The temporal profile, of unbounded/bounded, is not an independent option available to processes in general. Boundedness is a feature which may accrue to certain classes of process, typically processes of doing: contrast, for example, unbounded use with use up […]. It is on the borderline of lexis and grammar: the verb is extended by up or some other adverb of the locative-directional class (drink up, eat up, load up, pour out, melt down, fly away). The boundedness is not in fact temporally defined; its degree — and often its exact nature — is specific to the kind of process concerned, and may depend on the total figure and on the context; e.g.pour out the water ‘until the bowl is empty / until everyone has a drink’But there is a clear proportionality involved, which allows us to treat this as a systemic feature of a significant subset of processes in English.
write up the results ‘in a publishable form’