English grammar refers to the rules and conventions for encoding meaning in the English language, including word structure, phrases, clauses, and whole texts. It can be classified into parts of speech like nouns, verbs, adjectives, and adverbs, as well as other elements like determiners, tenses, punctuation, and relative clauses. English grammar differs from Spanish grammar in that English nouns lack gender, adjectives precede nouns, negation is simpler, subjects are essential, word order is less flexible, and capitalization and punctuation are used slightly differently.