Box11: Print your name, sign and date. File this completed form in the office where legal pleadings are filed.If you are mailing a form not listed, write the name of the form in the "other" space provided. Box 5: Print your spouse's name and address. The following resources include sample forms related to Pennsylvania interrogatories. Interrogatories may be served upon any party at the time of service of the original process or at any time thereafter. Complete the Certificate of Service (Form I-6), which shows how the other party was served. (a) (1) Answers to interrogatories shall be in writing and verified. The answers shall be inserted in the spaces provided in the interrogatories. Indicate the address of where service was made. 3.