Work at the Unit for Computer Research on the Eaglish Language at the University of Lancaster has been directed towards producing a grammatically snnotated version of the Lancaster-Oslo/ Bergen (LOB) Corpus of written British English texts as the prel~minary stage in developing computer programs and data files for providing a grammatical analysis of -n~estricted English text. From 1981-83, a suite of PASCAL programs was devised to automatically produce a single level of grammatical description with one word tag representing the word class or part of speech of each word token in the corpus. .