From the history of English language it is clear that good English has the tendency to vary from time to time, from area to area and from one social group to another. And these variations can be generalized according to two types – i) Standard English ii) Non-standard English . Sometimes we also distinguish between the accepted and non-accepted form of English. But these two ways of distinctions are synonymous.
The distinction between standards and non-standard English depends upon the Cultural Status (or ambitions of the people who are using this language) as well as the Functional verities of the language.
Cultural Status
As far as the cultural cause is concerned, Standard English describes the speaking and writing of cultivate people. It is the verity of spoken and written language that enjoys cultural prestige and which is the medium of education, journalism and literature. Non-Standard English describes the written and spoken use of habits of the uncultured, uncultivated group. Such speakers generally lack formal training on the use of the language and are from the jobs scenario and backgrounds where little or no writing are involved.
Functional verities
As far as the functional causes are concerned, we refer to different function and use of the language with in standard English. The chief functional verities are Formal and Informal.
Informal
It describes the English conversation of some private correspondence of ordinary everyday writing and speaking.
Formal
It describes the language used in books and articles on serious subjects, of reports and documentations in industry, business, legal and research fields. Even many literary prose use this language.
Though in most of the spoken cases informality is given priority, still in speeches on serious subjects and occasions like lectures, seminars, the use of formal speech is preferred.
As far as strict definitions are concerned, it should be however remembered that there is no sharp distinctive line between the formal and informal use of language. At the extreme end of formality are scholarly and careful writings from research, legal and business communication fields. And at the extreme of the informality are the use of language by the educated people who use them for private and causal purpose.
Other Forms of Language use:
Colloquial
It simply means spoken, being related to eloquent and loquacious. In this sense , it may be traced to any form of spoken English, whether standard or non-standard, formal or informal.
Many times this term refers to the everyday speech of educated people and to the kind of writing that has the easy vocabulary, the loose contructions and other characterstics of that speech. An American College Dictionary sums up this term as the kind of usage of English “whose range of use is primarily that of the polite conversation of cultivated people of their familiar letters and informal speeches as distinct from those words and constructions which are common also in formal writing”.
Slang
Slang is an informal non-standard vocabulary composed typically of coinages, arbitrarily changed words and extravagant figures of speech. Some times it results from intentional mis-pronunciation of a word.
Many times slangs are considered vulgar. But, the fact is that it is a part of current usage of language. It contributes to the share of growth of language. In many cases it has been noticed that the use of slang becomes common in main stream use of language and thus the slang becomes one of the general language use (e.g. rascal, ad, gym etc.).
But slang has following two serious limitations:
Clich