Abstract 0. Introduction 1. General Characteristics of North Kyongsang Tone 2. Tonal Alternation of Verb Forms 2.1. An Account of Tonal Alternation 2.2. Evidence for E-Deletion over E-Insertion 3. Evidence for the Present Analysis 3.1. Internal Evidence 3.2. External Evidence 4. Apparent Counter-examples and Explanation 4.1. Noncyclicity and Cyclicity of Verbal Suffixation 4.2. Apparent counterexamples 5. A Comparison with Previous Accounts Notes References