This volume is the fourth in a series of detailed reports on a working computer program for the syntactic analysis of English sentences into their component strings. The report (1) records the considerations involved in various decisions among alternative grammatical formulations and presents the word-subclasses, the linguistic strings, etc., for linguistic appraisal and improvement; (2) sets down in a non-program-specific form the computer grammar so that future reworkings of the grammar or reprogrammings can start from a neutral description (for this, English seemed to be the best language), free of the limitation imposed by the previous representation; and (3) provides a reference for those actively working with the string program, bringing together the description of grammatical items with their linguistic and program (or code) names. Sections cover the verb, center strings, subject strings, object strings, adjunct strings, and conjunctional and comparative strings. Three indexes are provided: (1) Strings and Subclasses, (2) Restrictions, and (3) Word-subclasses. (DO)