Abstract 1. Introduction 2. Tough-constructions 2.1. Classification of Tough-predicates 2.2. Interpretation of Tough-constructions 2.3. Genericity of Tough-constructions 2.4. Source of Genericity 3. Middle Constructions 3.1. Stativity of Middles 3.2. Types of Events in Middles and Middle Forming Verbs 3.3. Predication in Middles 3.4. Responsibility Reading 3.5. General Meaning of Middles 4. An Explanation of the Similarities 5. Conclusion References