GUDANG BACA

          Compound sentence is a sentence that at least have two simple sentences joined by a comma and a coordinating conjunction. A compound sentence consists two or more independent clauses and each one of them have their own subject and verb so that they can stand alone.

For example :
He dropped his ball, and it rolled into a hole in front of him. 

As you can see there, both of those underlined clauses are independent: they could be written as simple sentences. The joining word “and” is called coordinating conjunction. 

When do we use that conjunction? Well, you can see the explanation below.

- and, we can use this conjunction to join sentences that are alike.
For example : Anna's sister is having a dinner, and everyone is invited.

- but, we can use this conjunction to join sentences that are opposite or show contrast.
For example : Adi was happy, but Dea was sad.

- so, we can use this conjunction when the second sentence express the result of something described in the first sentence.
For example : Mila doesn't plan any party, so she'll stay at her bed all night long.

- or, we can use this conjunction to join sentences that give choice or alternatives.
For example : Hanif can choose a big card, or a small card.

- yet, we can use this conjunction if the second part of the sentence says something unexpected or surprising.
For example : I was scared, yet I was also curious about that haunted house.

- for, we can use this conjunction to introduce a reason or cause.
For example : It's not easy to join that club, for you who don't know anything about painting.

- nor, we can use this conjunction to join two negative sentences. Use question word order after nor. Place helping verbs.
For example :
He didn't talk, nor did he move.
The film isn't very long, nor is it difficult to understand.

Use a comma before a coordinating conjunction in compound sentence. Don't use a comma to join two words or two phrases in a simple sentence.

Another way to make a compound sentence is to combine the independent clauses with a semicolon (;). So, what's semicolon?Let's check the example below.

The weather was sunny; it was a hot afternoon.

When do we use a semicolon? Use semicolon sparingly in making compound sentence, and only if the following two conditions:
1) the thoughts of the two independent clauses are closely related.
2) a period could be substituted for semicolon to make two sentences.