two or more forms in one page, and the controller will recieve the forms into some object, how?

thanks everybody.

shold I put my answer into the subject line ?

What do you want to do exactly ? multiple model forms on one page
(form_tag); multiple forms and submitting both or mixing model forms
(form_for, fields_for) with non-model fields ?

Please explain your use-case.

Sorry for my bad forms.
I want to multiple some the same model form and one submit in one
page. There will be a def in the controller to create some objects to
recieve all the model forms, but now, for example,
@choices = Array.new(3){ Choice.new(params[:choice]) } #create objcets
with the recieved forms params
[:choice] means it can only comes one model form, what should I do to
make all the forms come into the def???
Thanks for your time.