Names for the number 0 in English call the first decade of the 21st century, as "00s" is not usually pronounced as a word. Apart from side stepping the issue and calling the decade the "two-thousands" (2000s) there is no agreed wording, although in Britain and some other countries "noughties" was also used. There is a need to maintain an explicit distinction between digit zero and letter O, which, because they are both usually represented graphically in English orthography (and indeed most orthographies using Latin script and Arabic numerals) with a simple circle or oval, have a centuries-long history of being frequently conflated. However, in spoken English,
Old English grammar and its imperative and participle forms from "bēon". (Modern German had an analogous, but even more complicated, development for its verb "sein".) In late OE and ME, the form "earon"/"earun", from the Old Norse "erun", replaced bēoþ and sind (See also List of English words of Old Norse origin). Old English is an inflected language, and as such its nouns, pronouns, adjectives and determiners must be declined in order to serve a grammatical function. A set of declined forms of the same word pattern is called a declension. As in several other ancient Germanic languages, there are five major cases: