Structural linguistic techniques were utilized to categorize the grammatical elements employed by Robert Frost in 46 blank-verse poems. Nineteen main grammatical categories and 26 verb sub-categories based on distinctive selection criteria were devised to examine the range and distribution of Frost's grammatical patterns. Five control poems by E. A. Robinson, T. S. Eliot, and Wallace Stevens were also examined. Two primary distinguishing stylistic features of Frost's blank verse are (1) the blank-verse form itself and (2) the artistic representation of conversation without the accompanying lack of coherence which frequently characterizes actual talk. A summary of the findings of the study includes the following points: (1) The most important quantitative feature contributing directly to the development of speaking tones is the extensive use of contracted forms. (2) The wide functional and morphological variety of hyphenated compounds underlies the creation of speaking tones and underscores Frost's lexical inventiveness and modernity. (3) The high "incidence percentages" for the verb forms and the functional variety among these forms constitute distinctive stylistic factors. (Author/LH)