How can I import my forms from adobe formscentral?

You can do this by following the steps provided here: http://www.jotform.com/help/309-How-to-Migrate-Form-Data-from-Adobe-FormsCentral-to-JotForm

If you want to only import your forms only you can do this from here: http://www.jotform.com/adobe-formscentral-alternative/.

If you also want to import your data then you need to follow method #2 on the provided guide.