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The preposition is traditionally defined as
a word expressing relations
between words in the sentence. The weakness of the traditional definition is that it
does not allow us to distinguish prepositions from subordinating conjunctions.
Cf. She never saw him after the concert. vs. She never saw him after he left
town.
In traditional analysis, the preposition is used with the noun phrase, not with
the verb phrase. Such being the case,
after
in the first sentence is a preposition,
while
after
in the second sentence is a conjunction.
In other words, the status of
after
is determined by the linguistic status of the following phrase. Accepting this
approach, we shall have to treat the two uses of
after
as homonyms.
A new approach to prepositions and subordinating conjunctions is to treat
the two traditional categories as prepositions (Geoffrey K. Pullum and Rodney
Huddleston, 2002: 600). The said scholars include in the preposition category all of
the subordinating conjunctions of traditional grammar with the exception of
whether
and
that
. Prepositions are taken as heads of phrases and are comparable to
verbs, nouns,
adjectives, and adverbs which also function as heads. This approach
to prepositions makes it possible to combine prepositions and subordinating
conjunctions into one class and thus solve the problem of the discrimination of
prepositions and conjunctions.
Sometimes the boundary line between a preposition and another part of
speech is not quite clear. Thus, with reference to the words like
near
there may be
doubtful cases from this viewpoint. For instance, there
certainly is the adjective
near
, used in such phrases as
the near future
. On the other hand, there is the
preposition
near
, found in such sentences as
They live near me
.
Functionally, prepositions can be divided into grammatical, and non-
grammatical (the latter are subdivided into spatial and non-spatial).
Grammatical prepositions have no identifiable meaning independent of the
grammatical construction in which they occur. Consider:
1. He was interviewed by the police.
2. They were discussing the speech of the President.
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3. She sent the letter to John.
In all these examples the prepositions have no identifiable meaning of their
own: it is only in the co-text that we can say what meaning they express. In (1) by
marks the element that is the Agent; in (2) of marks
the possessive relationship
between the speech and the president; in (3) to marks the Recipient.
In their grammatical functions, prepositions are similar to inflections in
synthetic languages.
Cf. interviewed by the police:
допрошены
полицией
;
the speech of the President:
речь
президента
;
sent to John:
отправила
Джону
.
As already indicated, non-grammatical prepositions can be divided into
spatial and non-spatial, the term spatial including two types of space: non-temporal
and temporal. Spatial non-temporal prepositions mark the
position of entities with
respect to each other: one entity is treated as a reference point (the deictic centre)
with respect to which another is located.
Morphological features
Structurally, prepositions fall into two categories: simple, or one-word,
prepositions (in, on, for, to, about, after, etc.) and composite, or two- or threeword,
prepositions (ahead of, because of, according to; by means of, at the cost of, with
reference to, etc.).
However, not all scholars recognize the existence of composite prepositions.
According to Prof. Ilyish, we cannot
term these groups prepositions, since a
preposition is a word, not a word group, and it is essential to keep up the
distinction between words and word groups. The term "compound preposition" is
too vague and is not conducive to a clear and consistent grammatical theory.
Syntactic features
As far as phrases are concerned, the function of prepositions is to connect
words with each other. On the sentence level: a preposition
is never a part of a
sentence by itself; it enters the part of sentence whose main centre is the following
noun, or pronoun, or gerund. It won’t be correct to say that prepositions connect
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parts of a sentence. They do not do that, as they stand within a part of the sentence,
not between two parts.
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