(i) Co-ordinative Conjunctions are those which connect co-ordinate sentences and clauses—that is, sentences
neither of which is dependant on the other. The following is a list: And,
both, but, either—or, neither—nor.
(ii) Subordinative Conjunctions
are those which connect subordinate sentences with the principal sentence to
which they are subordinate. The type of a subordinative
conjunction is that, which is really the demonstrative pronoun. “I know
that he has gone to London” is= “He has gone to London: I know that.”
(iii) The following is a list of
subordinative conjunctions: After, before; ere, till; while, since; lest;
because, as; for; if; unless; though; whether—or; than.