what is Interjection ,Conjunction and Preposition in english ?

What is Interjection ,Conjunction and Preposition ?

Preposition :

A preposition links nouns, pronouns and phrases to other words in a sentence. The word or phrase that the preposition introduces is called the object of the preposition.

A preposition usually indicates the temporal, spatial or logical relationship of its object to the rest of the sentence as in the following examples:

The book is on the table.

The book is beneath the table.

The book is leaning against the table.

The book is beside the table.

She held the book over the table.

She read the book during class.

The children climbed the mountain without fear.

In this sentence, the preposition "without" introduces the noun "fear." 

He sat on the chair.

There is some milk in the fridge.

She was hiding under the table.

The cat jumped off the counter.

He drove over the bridge.

She lost her ring at the beach.

The book belongs to Anthony.

They were sitting by the tree.

Conjunction :

You can use a conjunction to link words, phrases, and clauses.

      I ate pizza and pasta.     Call the movers when you are ready.

      Co-ordinating Conjunctions

You use a coordinating conjunction ("and," "but," "or," "nor," "for," "so," or "yet") to join individual words, phrases, and independent clauses. Note that you can also use the conjunctions "but" and "for" as prepositions.

      Lilacs and violets are usually purple.

      In this example, the coordinating conjunction "and" links two nouns

      After she had learned to drive, Alice felt more independent.

The subordinating conjunction "after" introduces the dependent clause "After she had learned to drive."

Interjection :

An interjection is a word added to a sentence to convey emotion. It is not grammatically related to any other part of the sentence.

You usually follow an interjection with an exclamation mark. Interjections are uncommon in formal academic prose, except in direct quotations.

The highlighted words in the following sentences are interjections:

Ouch, that hurt!

Oh no, I forgot that the exam was today.

Hey! Put that down!

I heard one guy say to another guy, "He has a new car, eh?"

I don't know about you but, good lord, I think taxes are too high!