JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
Share a form, meaning, allow your colleague to copy or clone your form so he/she can have the same structure of your form without re-creating it again? If yes, that's possible by cloning the form to his/her account: http://www.jotform.com/help/42-How-to-Clone-an-Existing-Form-from-a-URL.
Or, you can add your colleague as your sub-account user and give control to edit form and view submission. Please check this guide: http://www.jotform.com/help/232-How-to-Share-Forms-with-a-Sub-Account-User