We'll use Word 2013 to show you how to create a form, but this should work the same way for Word 2010 or Word 2007. You can also download our example file if you'd like to follow along.
Form creators can also ensure responses follow a particular format, including phone number, date, time, and e-mail address, using a validation setting. When you select the $Text Entry$ question type within forms, select the check box next to the $Pattern$. Then, choose how you would like that particular question to be validated using the dropdown menu.