Update article.md

I think this work better

1-js/09-classes/05-extend-natives/article.md

@@ -34,7 +34,7 @@ Even more, we can customize that behavior.
 
 We can add a special static getter `Symbol.species` to the class. If exists, it should return the constructor that JavaScript will use internally to create new entities in `map`, `filter` and so on.
 
-If we'd like built-in methods like `map`, `filter` will return regular arrays, we can return `Array` in `Symbol.species`, like here:
+If we'd like built-in methods like `map` or `filter` to return regular arrays, we can return `Array` in `Symbol.species`, like here:
 
 ```js run
 class PowerArray extends Array {