It sounds like you want subforms:
http://framework.zend.com/manual/en/zend.form.forms.html#zend.form.forms.subforms
Each top-level form is responsible for a single submission (POST or GET)
to an new url. To have 3 forms on a page means that your submit will
only submit what is in the scope
I want to show on one page three forms. Each form your submit. To each form
processed separately from the other (validation, data storage in a database,
etc.).
The code that showed above, have a problem. When being validated form is not
valid, then it is only displayed, and I need to also