How i can write a original articles?

Do what reporters do. Go to sources and ask questions.

SORRY, I DONOT KNOW HOW TO DO , i am new this forum

You need to read novels. Lots of novels. Any novels. Notice that they all have perfect spelling, perfect punctuation, perfect composition. Notice where they use one space and where they use two. (That's not a big deal any more, but you should be aware of it.) Notice that every speaker in a dialog gets a new paragraph, and every paragraph is preceded by a blank line. Notice any writing techniques or figures of speech. Take notes so you know where you found what you know. It takes a lot of reading to be a writer.

Read magazine articles the same way. Magazines are free in most waiting rooms or at the local library.

Are you planning on writing the article in English? If so, you need to learn the language better before you start writing.