CONDITIONAL SENTENCES


Conditional sentences are sentences expressing factual implications, or hypothetical situations and their consequences. They are so called because the validity of the main clause of the sentence is conditional on the existence of certain circumstances, which may be expressed in a dependent clause or may be understood from the context.
A full conditional sentence (one which expresses the condition as well as its consequences) therefore contains two clauses: the dependent clause expressing the condition, called the protasis ; and the main clause expressing the consequence, called the apodosis.
In English conditional sentences, the condition clause (protasis) is most commonly introduced by the conjunction if, or sometimes other conjunctions or expressions such as unless, provided (that), providing (that) and as long as. Certain condition clauses can also be formulated using inversion without any conjunction (should you fail...; were he to die...; had they helped us... ; see also the corresponding section about inversion in the English subjunctive article).
In english language teaching, conditional sentences are often classified under the headings Zero Conditional, First Conditional (or conditional I), second conditional (or conditional II), third conditional (or conditional III) and mixed conditional, according to the grammatical pattern followed. A range of variations on these structures are possible.

Uses of the Conditional
  1. First conditional
    1. Nature: Open condition, what is said in the condition is possible.
    2. Time: This condition refers either to present or to future time.
      e.g. If he is late, we will have to go without him.
      If my mother knows about this, we are in serious trouble.
  2. Second conditional
    1. Nature: unreal (impossible) or improbable situations.
    2. Time: present; the TENSE is past, but we are talking about the present, now.
      e.g. If I knew her name, I would tell you.
      If I were you, I would tell my father.
      Compare: If I become president, I will change the social security system. (Said by a presidential candidate)
      If I became president, I would change the social security system. (Said by a schoolboy: improbable)
      If we win this match, we are qualified for the semifinals.
      If I won a million pounds, I would stop teaching. (improbable)
  3. Third conditional
    1. Nature: unreal
    2. Time: Past (so we are talking about a situation that was not so in the past.)
      e.g. If you had warned me, I would not have told your father about that party.(But you didn't, and I have).
Source :
https://en.wikipedia.org/wiki/Conditional_sentence
http://grammar.ccc.commnet.edu/grammar/conditional2.htm

08.44 | Category: | 0 komentar

Comments (0)

Posting Komentar