Corpus linguistics is a research methodology that involves the analysis of large collections of texts (corpora) to investigate language patterns and usage. By systematically collecting and analyzing linguistic data from corpora, researchers can identify trends, patterns, and variations in language use across different contexts, genres, and time periods. Corpus linguistics is used in various fields such as linguistics, language teaching, translation studies, and computational linguistics. It provides valuable insights into language structure, variation, and change, and helps researchers understand how language is used in real-world contexts.