Prepositions are words placed before a noun or a pronoun to show what one thing or one person has to do with another thing or person; like: -
i) My hand is on the table.
In the above sentence, if you omit the word on, then the sentence makes no sense. You can place your hand on the table, or under the table, or above the table. Unless you add some Preposition to the sentence, the relation between the table and the hand is not clear.
ii) You are in a good mood today.
In the sentence, the word in is placed before the noun ‘mood’ (or ‘a good mood’) and shows what you have to do with a good mood. Therefore, in is a Preposition.
iii) You arrived here before me.
In this sentence, the word before is placed before the pronoun ‘me’ and it shows what your arrival has to do with ‘me’. It shows you arrived sooner than I did. Therefore, before is a Preposition.
Prepositions are never added to any Part of Speech other than a noun or a pronoun or their equivalent.
Prepositions often have same form as the Adverbs. So, how can you differentiate? Here is a simple rule that can help you out to solve this problem and that is;
Adverbs are never added to a noun or a pronoun.
Following this rule you can tell whether a word is an Adverb or a Preposition. Some examples are given below;
|I walked about the field.||I walked about.|
|The sky is above the earth||The above-mentioned name.|
|The man lives down the lane.||Sit down there.|
|Let me walk along the road.||Go along slowly.|
|The pen is inside the pencil box.||She sat inside.|
|By whom was the book written?||The cow was grazing by.|
|Fish swim in the water.||Mosquitoes fly in and out.|
|He slept within the room.||The room was never clean within.|
|His house is near yours.||They are standing near.|
|Since that year she has been ill.||She passed away three years since.|
|She went after a few days.||She went a few days after|
The noun or the pronoun, which is placed after a Preposition, is called an Object.
- Sometimes two Prepositions are used together, but both having the same object; as,
The rat crept in between the cardboards.
The rat appeared from between the cardboards.
The man stood out from among all.
She came from within her room.
- Sometimes, a Preposition takes form of a phrase, instead of a single word. However, a Prepositional Phrase always ends in a Simple Preposition.
In front of; because of; for the sake of; in the event of, with regard to; on behalf of; with reference to; in the place of; with a view to; on account of; by means of; in opposition to;, because of; in lieu of;, instead of.
- Sometimes, the object to the Preposition is an adverb used as a noun and sometimes is a sentence.
Till then; from here; from now; before now etc. (Adverbs)
She told everybody of what she had done. (Sentence)