Native speakers of a language can write blogs in that language with relative ease. However, there are a few things to keep in mind. First, use the standard written form of the language. Don’t use colloquialisms or idioms.
Second, make sure your grammar is correct. Third, be sure to use the right punctuation and word order. Finally, make sure your content is interesting and engaging. If you can meet all of these requirements, you will be able to write blogs in your own language with ease.