The preposition in Russian is part of the speech thatis necessary in order to express the syntactic connections of words or parts of speech. It does not have its own significant meaning, therefore it is considered an official element of speech.
In Russian there are two categories of such words: non-derivative and derivative prepositions.
With the first all is clear. They were formed during the evolution of the language, they are short words that can not be confused with other parts of speech or incorrectly written them. They usually consist of one word.
Proposals with prepositions non-productive in our speech occupy a significant place. For example: I'll be at six. Look at this house. I can not live without you. Walk on the edge. Tell about the new film.
Derived prepositions in Russian tooare often encountered, but it is much more difficult to determine them, and, moreover, to write correctly. In their meaning, they can also be temporary, spatial or causal.
Derived prepositions are pretexts thatformed from other parts of speech. Their significant significance and morphological features were lost for one reason or another, only the syntactic remains. They are most often used with a certain case. Distinguish from the significant parts of speech they can be with the help of a question. This is done approximately like this.
A school was built opposite my house. Have built (where?) Opposite the house. The word "opposite" does not have its own meaning, in this case it is a derivative preposition.
I live opposite the new school. I live (where?) Opposite (what?) School. The word "opposite" in this case has its own lexical meaning, and therefore it is an adverb.
Derived prepositions, like non-derivatives, can consist of one word (simple) or several (composite). For example: During the investigation, new details (compound) were found out. The rain was canceled due to the rain. (Plain).
Derived prepositions can:
Naturally, this is not all derivative prepositions that are used in Russian: only a few of the most common are listed here.
In order to correctly determine which part of the speech is the right word (and also determine its correct spelling), one can find synonyms for homonymous parts of speech.
For example. I put the money in the bank account. In this case, the account is a letter of credit, a savings account, i.е. noun. Therefore the preposition (on) + the noun (account) is written separately.
I arranged for a repair. "About" = "about" (agreed on the repair). Hence it is a derivative preposition, it is written together.
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