The sentence

When a number of words (parts of speech) are put together in such a way that they express a complete thought, you have a sentence.

The paper contains news.
Please open the window.
Ask dozen of people!
Shall I put those or here?

In order to express a complete thought, a sentence must have both a subject and predicate. The subject ia a word or group of words that tell us what or whom the speaker or writer is talking about. The predicate is the part of sentence that makes a statement about the subject. the predicate usually tells what the subject is doing, or that is happening to the subject.