Part of the speech is a grammatical category, into which the words of the Russian language are divided according to the result of certain semantic attributes that they have or of some general meaning. The latter should be accompanying for the specific lexical meaning of the word.
When determining membership in any part of speech, morphological general properties are taken into account - a system by which the grammatical category of a given word category is solved, as well as syntactic signs or features in functioning.
The Russian language distinguishes between two types of words: independent, as well as auxiliary parts of speech.
Independent are those categories by which action, object, state, quality, etc., as well as those by which they are indicated, are called.
Moreover, such parts of speech should have an independent grammatical as well as individual meaning, and be the main or secondary members in sentences.
These include nouns, numerals, adjectives, verbs, pronouns and adverbs.
The function of the service parts of speech includes the expression of certain relations between those concepts that are expressed significant words. They are used only with them and are not members of offers.
The service parts of speech defined in the Russian language are an excuse, a union, a particle.
Let's consider each of them separately.
Prepositions are those service parts of speech, which, together with indirect cases of all registered parts in the Russian language, are able to express the relationship between their own forms and other words.
Prepositions in their structure are compound and simple, and by origin they are divided into antiderivatives (in, in front, on, etc.), verbal (thanks, excluding) and anonymous (like, like).
Almost all of them, as well as auxiliary parts of speech, are used together with a certain case, while expressing various relationships: temporary, objective, target, causal, spatial. Non-self-contained words expressing the relationship between members in a sentence from a grammatical point of view are called unions.
They are derivative (as if to) and non-derivative (yes, or, and).
In syntactic use, the auxiliary parts of speech are composed - connecting homogeneous members or simple sentences, and subordinate, connecting the main members of the sentence with secondary ones.
In turn, the particles give the sentence additional emotionality or a semantic connotation. They are indicative (out, here, this), clarifying (namely, just), restrictive (only, only), amplifying (after all, even), interrogative and negative.
Let's try to figure out what the spelling of the service parts of speech (non-self-dependent) looks like.
Prepositions are written separately, this applies only to those words to which they refer. Sometimes they are confused during spelling with prefixes and therefore are written together.
To do this, you need to know the rule: prepositions are never used with the predicate.
The prepositions “because”, “above” and “from below” must be written with a hyphen, they are considered difficult.
As we have said, there are prepositions with spatial, concessive, and similarity meanings. All of them are written together. For example, due to absence - due to absence, like an animal - like an animal, etc.
Those that define causal, temporary, additional, and detailed meanings are not readily written. For example, during, in connection, for a reason, etc.
The rules of Russian spelling suggest two spelling of unions, for example, "too" and "also", the spelling of which in different cases is different. If in a sentence or phrase these words can be replaced by each other, then they need to be written together. Otherwise, if such a rearrangement is impossible, they become already the demonstrative pronouns “that” and “how”, working with the particle “same”, and therefore, must be written separately.
Example:
Your friends got married, you too (also) need to follow their example.