Language (Speech) is divided to certain strata or levels. The linguists distinguish basic and non-basic (sometimes they term them differently: primary and secondary) levels. This distinction depends on whether a level has got its own unit or not. If a level has its own unit then this level is qualified as basic or primary. If a level doesn`t have a unit of its own then it is a non - basic or secondary level. Thus the number of levels entirely depend on how many language (or speech) units in language. There`s a number of conceptions on this issue: some scientists say that there are four units (phoneme/phone; morpheme/morph; lexeme/lex and sentence), others think that there are five units like phonemes, morphemes, lexemes, word -combinations (phrases) and sentences and still others maintain that besides the mentioned ones there are paragraphs, utterances and texts. As one can see there`s no unity in the number of language and speech units. The most wide - spread opinion is that there are five language (speech) units and respectively there are five language (speech) levels, they are: phonetic/phonological; morphological; lexicological, syntax - minor and syntax - major. The levels and their units are as follows: