Irish English's writing standards align with British rather than American English. However, Irish English's diverse accents and some of its grammatical structures are unique, with some influence by the Irish language and some instances of phonologically conservative features: features no longer common in the accents of England or North America. Phonologists today often divide Irish English into four or five overarching dialects or accents: Ulster accents, West and South-West Irish accents (like the widely discussed Cork accent), various Dublin accents, and a non-regional standard accent expanding since only the last quarter of the twentieth century (outside of Northern Ireland).