MY MY MY
When used as adjectives, they should be hyphenated: first-person, second-person, third-person. The table at right shows which combinations of tense and grammatical person are generally appropriate.
In Indo-European languages, first-, second-, and third-person pronouns are all marked for singular and plural forms, and sometimes dual forms as well (see grammatical number). Some languages, especially European, distinguish degrees of formality and informality (see T-V distinction).
Other languages use different classifying schemes, especially in the plural pronouns. One frequently found difference not present in most Indo-European languages is a contrast between inclusive and exclusive, a distinction of first-person pronouns of including or excluding the addressee.
Other languages have much more elaborate systems of formality that go well beyond the T-V distinction, and use many different pronouns and verb forms that express the speaker's relationship with the people she addresses. Many Malayo-Polynesian languages, such as Javanese and Balinese are well known for their complex systems of honorifics; Japanese and Korean also have similar systems to a lesser extent.