good English teacher excels at developing students' comprehensive language skills in reading, writing, speaking, and listening by providing engaging lessons, catering to diverse learning styles, and fostering a positive learning environment, while demonstrating a deep understanding of grammar, vocabulary, and literature, all while actively assessing student progress and providing constructive feedback to help them achieve their individual goals; key aspects include excellent communication skills, cultural sensitivity, and the ability to adapt teaching methods to meet the needs of each student.