Prepositions are a class of words that indicate relationships between nouns, pronouns and other words in a sentence. Most often they come before a noun. They never change their form, regardless of the case, gender etc. of the word they are referring to.
Some common prepositions are:
About
before
behind
below
beneath
beside
between
The preposition is the kind of word invariable which introduces the so-called prepositional phrase. Prepositions usually have the function of introducing attachments, and sometimes lagans binding complement the name or noun phrase that immediately precede a verb or another name as above. In some languages prepositions may not lead a prepositional phrase, as in English, which may even appear at the end of the sentence.
Considering the languages of the world, the preposition is a type of apposition characterized by typically appears at the beginning of syntactic constituent that is affected, so for example, the equivalent word that comes after and not before is called postponement.
Traditionally, Spanish grammar has been defined as the invariable part of speech that connects words denoting their relationship to each other.
Prepositions typically come before a noun:
For example:
ü after class
ü at home
ü before Tuesday
ü in London
ü on fire
ü with pleasure
A preposition usually indicates the temporal, spatial or logical relationship of its object to the rest of the sentence.
For example:
ü The book is on the table.
ü The book is beside the table.
ü She read the book during class.
In each of the preceding sentences, a preposition locates the noun "book" in space or in time.
Compound prepositions
Compound prepositions are more than one word. In between and because of are prepositions made up of two words - in front of, on behalf of are prepositions made up of three words.
For example:
v The book is in between War and Peace and The Lord of the Rings.
v The book is in front of the clock.
Examples:
v The children climbed the mountain without fear.
v There was rejoicing throughout the land when the government was defeated.
v The spider crawled slowly along the banister.
Prepositions are short words (on, in, to) that usually stand in front of nouns (sometimes also in front of gerund verbs).
Even advanced learners of English find prepositions difficult, as a 1:1 translation is usually not possible. One preposition in your native language might have several translations depending on the situation.
There are hardly any rules as to when to use which preposition. The only way to learn prepositions is looking them up in a dictionary, reading a lot in English literature and learning useful phrases off by heart study tips.
