Corpus analysis: Corpus is a large amount of language data collected, sorted out and analyzed, which can be used to study various problems in English education. For example, we can use a corpus like COCA(CollegeEnglishCorpus) to study the usage of English vocabulary, grammar and idioms.

2. Empirical research: Empirical research is a research method based on observation and experiment, which can be used to verify or overthrow theoretical assumptions. In English education research, we can test the effects of different teaching methods, strategies or materials through empirical research.

3. Meta-analysis: Meta-analysis is a statistical technique that can be used to combine and analyze the results of several independent studies. In English education research, we can evaluate the effects of different teaching methods, textbooks or courses through meta-analysis.

4. Content analysis: Content analysis is a qualitative research method, which can be used to analyze and interpret text, images or other non-numerical data. In English education research, students' learning needs, interests and motivations can be understood through content analysis.

5. Case study: Case study is a method to deeply study individual events or situations, which can be used to understand and explain specific teaching practices or problems. In English education research, we can learn more specific teaching strategies or problems through case studies.

6. Investigation: Investigation is a research method to collect and analyze data, which can be used to understand and explain people's behaviors, opinions and attitudes. In English education research, students' learning behavior, attitude and satisfaction can be understood through investigation and research.