Can not display a form in laravel using laravel collective

I want to create form in my laravel page. I use laravel collections for this, but that is not work. I used composer, then pasted commands to providers and alias and when I am doing this in my code:

       
       echo Form::text('username');
       

I have only returned "echo..." as text.

What can I do to create my own form?

via Chebli Mohamed