A word that connects words, phrases, or clauses is called a Conjunction
. If it connects words, phrases, and clauses of equal rank, it is called a Co-ordinate Conjunction
, such as and, but, either-or, neither-nor, not only-but also.
The last three are usually used in pairs and we call them Correlatives
. If it connects word groups of unequal rank, it is called a Subordinate Conjunction
, suchas if,
because, since, as, then, though, unless, while, when, where.
Two or more words used for the purpose of connection are called a Conjunctional Phrase
, such as in order that, as soon as.
If a word points out relationship between a word preceding and a word following, it is called a Preposition
. The Simple Preposition
consists of a single word, such as after, at, against, by, for, from, in, of, on, over, through, to, under, with;
the Compound Preposition
consists of two or more words used as one or derived from other speech forms, such as
across, covering, into, notwithstanding, underneath, without;
the Phrasal Preposition
consists of two or more words used to indicate one relation, such as because of, for the sake of, in spite of, instead of, on account of, out of.