Conditional Sentences

      Contoh  Conditional Sentences

         

           1. Form

Type	If-clause	Main clause
1	Simple Present	Will-future or (modal + infinitive)
2	Simple Past	Would + infinitive
3	Past Perfect	Would + have + past participle

2.      2. Example (If-clause at the beginning)

Type	If clause	Main clause
1	If I study,	I will pass the exam.
2	If I studied,	I would pass the exam.
3	If I had studied,	I would have passed the exam.

3.  Example (if-clause at the end)

Type	Main clause	If-clause
1	I will pass the exam	If I study.
2	I would pass the exam	If I studied.
3	I would have passed the exam	If I had studied.

Sumber :  http://www.englisch-hilfen.de/en/grammar/if.htm