Conjunction

From Wikipedia, the free encyclopedia

A conjunction is a type of word, or a part of speech, which joins two phrases or clauses together. Examples that are common are: and, but, or, and so on. Conjunctions can make sentences not sound so broken up. They let the words flow together. Conjunctions are commmonly used by people who are better at English, people who are not so familiar with it, stick to sentences that are broken up.

In addition to that conjunctions should not be used to start a sentence. It is not completely wrong to do that but is frowned upon by most people educated in the English Language.