customization - Create a url structure for my blogs based on categories and sub-cats in WordPress

With the following as a permalink structure;

/%category%/%postname/

The category slug is added to the URL. Subcategories, if any, appear as nested directories.

So you end up with ;

• /category/your-post-slug/

And if subcategories are used

• /category/subcategory/your-post-slug