The difference between a preposition and a conjunction.

Conjunction and preposition refer to official parts of speech. Their main difference is that they perform different functions. Conjunctions serve to link homogeneous members of a sentence, parts of a sentence and individual sentences in a coherent text. Prepositions express the dependence of nouns, numerals and pronouns on other parts of speech in the phrases that make up the sentence.

This difference is obvious when considering simple non-derivative prepositions and conjunctions.

Prepositions Conjunctions

goalongthe path to the stream the garden smelled of autumn foliageandapples

threeout offive friends it will snow,orit will rain

I will doforI know you,howto help you

It is more difficult to determine the differences in derivative prepositions and conjunctions. In order not to be mistaken, one should pay attention not only to their functional significance, but also to the method of education.

Derived prepositions can be formed

from adverbs:aroundthe world,neara lake,neara well;

from nouns:due toviolations,duringdays,likestone;

from the verbs:thanks tosupport,aftermonth,despitedifficulties.

As a rule, derivative prepositions can be replaced by some other prepositions:

nearhouse -nearhouse;

due toleak -due toleak;

afterday -afterday.

Derivative conjunctions are most often formed from pronouns by the way of attaching particles or prepositions:

tobreathe - whatever;

that's whycan't sleep - because of that.

A productive way of forming derivative unions is the transition of independent parts of speech into service ones with the loss of the original lexical meaning and morphological features:

thinks,even ifis not lucky;

hurries,exactlyon fire.

Derivative prepositions are often included in such unions:

due to the fact that;

despite the fact that.

In structure, both prepositions and conjunctions can be simple or compound. Simple ones consist of one word, compound ones - of several.

Simple prepositions: Simple conjunctions:

in, on, for, out, to, on, at, in the middle, and, but, but, what, as, so much,

instead of, due to. as if, as if, so.

Compound prepositions: Compound conjunctions:

near,in the form, up to, because, since, that is,

in connection with, according to p. although.

Some simple derivatives and compound prepositions are most easily distinguished from conjunctions by context:

The boydrank plain water instead ofmilk. (The prepositioninstead ofconnects the verbdrankand the nounmilk)

Instead ofgo home, he went to the river. (Unioninstead ofconnects parts of a sentence)

Conjunctions, unlike prepositions, are used to express a compositional or subordinate connection in sentences:

The sky darkened and thunder crashed. (Constructive Unionand)

They set off as soon as dawn broke. (Submissive unionbarely)

Conclusions TheDifference.ru

  1. The preposition indicates the dependence of the nominal parts of speech on words with which they are associated with a way of control. The union serves to connect homogeneous members of the proposal or parts of the proposal, and can also unite in the sense of individual sentences in the text.
  2. Derived prepositions are formed from adverbs, nouns and verbs. Derivative conjunctions are most often formed by merging pronouns with particles or prepositions.
  3. Derivative conjunctions can include prepositions; conjunctions are never part of derived prepositions.
  4. By meaning, unions are divided into compositional and subordinate. Prepositions are only divided into groups by origin.
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