Yes you can, You are the author and manager of your content.
When you write an article and have it submitted to the article directories your article may be posted on hundreds of other peoples websites and blogs.
This is ok. But what I would do is slightly rewrite or modify your articles. Just wait for a couple of days after you first write a Hub and then you will see little things you would have worded differently. It is a simple process and it can be worth a great deal to you.
Also if possible always link your Hubs and other articles to a main website. but not the home page of your website. Always link to a page that is keyword optimized for the same keyword your article in focused on.