Forms are available for download in Adobe Acrobat PDF format. You will need the free Acrobat Reader to view and print PDF forms.A written statement that someone makes after promising officially to tell the truth. An affidavit can be used as proof in a law court. USCIS.gov now has an online dictionary (glossary). You can use this dictionary to quickly look up a definition or explanation for a topic. Filing Form I134A, Online Request to be a Supporter and Declaration of Financial Support. Q1. Below is a list of forms that you may download for free from our website.