The document discusses the structure of English, including its orthography, phonology, morphology, syntax, and lexicon. It notes that English has a deep orthography where spelling is often inconsistent with pronunciation. Phonologically, English has a complex consonant and vowel system and utilizes syllable weight in stress assignment. Morphologically, English uses suffixes for inflection and derivation and exhibits allomorphy. Syntactically, English is an SVO language that is mostly right-branching with some inconsistent head-modifier ordering. The lexicon contains words from various language sources that differ in phonological and morphological properties.