Sabtu, 07 November 2015

Conditional Sentences

CONDITIONAL SENTENCES
Conditional tenses are used to speculate about what could happen, what might have happened, and what we wish would happen. In English, most sentences using the conditional contain the word if. Many conditional forms in English are used in sentences that include verbs in one of the past tenses. This usage is referred to as "the unreal past" because we use a past tense but we are not actually referring to something that happened in the past. There are five main ways of constructing conditional sentences in English. In all cases, these sentences are made up of an if clause and a main clause. In many negative conditional sentences, there is an equivalent sentence construction using "unless" instead of "if".

Type of condition
I           condition possible to fulfill
II         condition in theory possible to fulfill
III        condition not possible to fulfill (too late)


TYPE 1 CONDITIONAL
The type 1 conditional is used to refer to the present or future where the situation is real. The type 1 conditional refers to a possible condition and its probable result. In these sentences the if clause is in the simple present, and the main clause is in the simple future.

If clause                      Main clause
If + simple present      simple future
If this thing happens   that thing will happen.
If you don't hurry        you will miss the train.
If it rains today           you will get wet.

TYPE 2 CONDITIONAL
The type 2 conditional is used to refer to a time that is now or any time, and a situation that is unreal. These sentences are not based on fact. The type 2 conditional is used to refer to a hypothetical condition and its probable result. In type 2 conditional sentences, the if clause uses the simple past, and the main clause uses the present conditional.

If clause                                 Main clause
If + simple past                      present conditional or present continuous conditional
If this thing happened that thing would happen. (but I'm not sure this thing will happen) OR
that thing would be happening.
If you went to bed earlier       you would not be so tired.
If it rained                               you would get wet.
If I spoke Italian                     I would be working in Italy.


TYPE 3 CONDITIONAL
The type 3 conditional is used to refer to a time that is in the past, and a situation that is contrary to reality. The facts they are based on are the opposite of what is expressed. The type 3 conditional is used to refer to an unreal past condition and its probable past result. In type 3 conditional sentences, the if clause uses the past perfect, and the main clause uses the perfect conditional.

If clause                                              Main clause
If + past perfect                                  perfect conditional or perfect continuous conditional
If this thing had happened that thing would have happened. (but neither of those things really happened) OR
that thing would have been happening.
If you had studied harder                    you would have passed the exam.
If it had rained                                    you would have gotten wet.
If I had accepted that promotion        I would have been working in Milan.


EXERICES :

Conditional Sentences Type I
Complete the Conditional Sentences Type I.
If you (go) ........... out with your friends tonight, I (watch) ........... the football match on TV.
I (earn) ........... a lot of money if I (get) ........... that job.
If she (hurry / not) ........... , we (miss) ........... the bus.


Conditional Sentences Type II
Complete the Conditional Sentences Type II.
If he (try) ........... harder, he (reach) ........... his goals.
I (buy) ........... these shoes if they (fit) ...........
It (surprise / not) ........... me if he (know / not) ...........  the answer.


Conditional Sentences Type III
Complete the Conditional Sentences Type III.
If we (listen) ...........  to the radio, we (hear) ........... the news.
If you (switch) ........... on the lights, you (fall / not) ........... over the chair.
She (come) ........... to our party if she (be / not) ........... on holiday.

Sources :

https://www.ego4u.com/en/cram-up/tests/conditional-sentences-3 www.englisch-hilfen.de/en/grammar/if.htm
www.edufind.com/english-grammar/conditional/

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