A conjunction is a word which joins together words or sentences.

Example :
       And, as, but, before, after, if, whether, than, when, that, though, for, yet, why, unless, while, lest ..etc.

Types of Conjunction

Phrase Conjunctions
       When phrase used as conjunction they are called Phrase Conjunction.

Example :
         As soon as he saw his father, he threw the cigarette away.
        She appeared on the scene as if she were a princess.
        It seems as though it is going to rain.
        The teacher as well as his student was injured.
        This is fully correct as far as I am concerned.
        I would not do that even if he gave thousands of rupees.
        I worked hard so that I might get a first class.

Co-ordinating Conjunctions
              A conjunction that joins together sentences, clauses or words of equal rank, is called a Co-ordinating Conjunction.

Example :
        and, but, for, also, or, nor, so, yet, either..or, neither..nor
       The idol is made of bronze and the toy is made of wood.
       Please, take coffee or tea.
       Do or die.

Subordinating Conjunctions
       A conjunction that joins a clause to the main clause in a sentence is called Subordinating Conjunctions.

Example :
      after, before, because, if, whether, when, where, how, while, that, though, although, as, unless, till
       He was absent because he was ill.
       Strike when the iron is hot.
       
Some Conjunction Come In Pairs
    He is either a begger or a theif.
    She is neither my sister nor my niece.
    Not only I like mangoes, but also apples.
   Though he is poor, yet he helps the needy.
    She is both, pretty and clever.
    Whether they bring it or not is uncertain.
    Milton was not a politician but a poet.
    No sooner did I see him than I saluted him.
    Scarely had the rain stopped when I went out.