Yes, there are a couple of ways to do this.
1. The best way is to export (from the design screen) both forms in excel, identify the fields you would like to copy from one form, then copy and paste the entire rows into the excel spreadsheet of the form you want the fields copied into. Then save this excel document and import it to your form design.
2. Clone the first form, then edit the cloned form to suit your needs.
3. If you're only looking to copy fields within the same form, there is a small double box icon that you can click and the field will be copied. Please be sure to check the data name of your copied field, then make appropriate edits and save.