Grammar in Indonesia is known as tata bahasa. All languanges in the whole world must have grammar in each languange because grammar is the whole system or structure of a languange. It helps us to write a sentence correctly by its formula. Then, before we reach a complete or perfect sentence, we need to gain information about part of speech.

We must know and understand about it because it is a main part of making English sentence. In addition, by learning the material about part of speech, we will know the right choice of words in making a sentence.