Prepositions are the small functional words and their purpose is to join noun to other parts of speech, like; two nouns, noun to verb, noun to pronoun and noun to adjective.
Preposition determines situation in a sentence
Other function of preposition is to determine the situation in the sentence as explained in the following; (italicized and underline words are prepositions)
You see by changing preposition whole situation of the sentence got changed.
at, in, by, for, on, under, to, up, of, off etc
Types of preposition
There are some major types of prepositions as follows;
Preposition indicating time
Preposition of time, as the phrase indicates, is related to time. They are in, on and at.
At is used with certain time, like;
On is used with days, like;
In is used with years
Preposition indicating place
Whenever any preposition indicates place it is called preposition of place, like; in, on, at. In is used for big places and at for confined places.
Preposition indicating direction
When preposition is indicating any direction, like; to, towards, into etc, it is called preposition of direction.
Preposition indicating possession
The prepositions like of and with etc also show possession, like ;
Preposition indicating purpose
Some prepositions, like; for and of etc indicate purpose. See examples.
There are many prepositions which are used as a phrase as explained in the following examples; (italicized and underline words are phrasal prepositions)
There is difference between phrasal prepositions and compound prepositions. The phrase prepositions are the combination of words whereas compound preposition has either suffix or prefix attached to it, like;