A preposition is a word that is used with a noun or pronoun to form a phrase that shows where, when, how and why. A preposition is a word that is used before a noun, pronoun or gerund to connect it to another word. A preposition is a closed class of non-inflecting words typically employed to connect a noun or a pronoun, in an adjectival or adverbial sense, with some other word. A preposition is a part of speech that is used to indicate the role that the noun phrase that follows it plays in the sentence. Prepositions form a closed class of words. Dependent preposition - Many nouns, verbs and adjectives are followed by a particular preposition. These prepositions are dependent prepositions, e.g. interested in, depend on, bored with.
as far as
by means of
by way of
in addition to
in back of
in case of
in front of
in lieu of
in place of
in regard to
in spite of
on account of
on behalf of
A prepositional phrase is a group of words that consists of a preposition and the related noun or pronoun form e.g. under the table. There are sixty or so prepositions, e.g. in, on, about, of. These small words (some are fixed phrases such as, 'out of', 'across from', etc.) are useful as they link to a noun or noun phrase (which is said to then act as the object of the preposition); this creates a prepositional phrase. Prepositions indicate relationships between different parts of the sentence.
The following table shows a list of prepositions.
The suspects landed in jail.
[The relationship between the noun jail and the verb landed is shown by the preposition in.]
Please hide the packages under the bed.
[The relationship between the noun bed and the noun packages is shown by the preposition under.]
The guitarist playing with our band is Samantha's uncle.
[The relationship between the noun band and the participle playing is shown by the preposition with.]
I already knew about it.
[The relationship between the pronoun it and the verb knew is shown by the preposition about.]
On the desk.
To stand next to the chair.
In front of the house.
Clouds are over the earth and below the moon.
Naomi went toward the mountain at 2 o'clock.
the preposition "with" often signals that NP that follows is the instrument of the action described in the sentence.
She ate the pizza with her fingers.
It can also indicate the co-agent, especially if the NP describes something that is animate.
She ate the pizza with her friends.
As well as signalling a relationship between a noun phrase and the main verb of the sentence, a preposition can indicate a relationship between a noun phrase and another noun phrase.
This is particularly the case with "of", as in "The length of the ruler is 40 cm".
Prepositions are the head items of prepositional phrases.