Are you being tasked with looking at forms that others have already filled out? If so, you might want to consider converting the whole form to "straight MS-Word document" format, even if just for the purpose of reading, and not saving the result if it must remain as a fillable form. If it does not need to remain that way after you've received it for processing, and you may need to refer to it later, I'd save the "converted to normal MS-Word document" version for filing purposes.
When dealing with fillable Word forms as the person filling them out, unless you have your screen reader echoing character-by-character as you type, you will hear nothing as you fill out a form field. This is a quirk of how these are processed by Word. You've got to complete the filling in, tab to the next field/checkbox/whatever, then Shift+TAB back to get your text that you filled in read.
What follows presumes the designer of the fillable form did what they should have and imposed editing restrictions such that the original recipient was only able to traverse the fillable parts and interact with them. Also that they did not password protect these settings as well, otherwise you'd have to know the password to complete the removal of editing restrictions.
Unprotecting All Word Form Fields and Converting Them to Regular Text
1. You must first remove the restricted editing settings that allow you only to fill out the form
a. Activate the Developer Tab, Restrict Editing. ALT+L,PE
b. Activate the Stop Protection button, which is the only button. Just Hit Enter
c. Close the Restrict Editing pane. CTRL+Spacebar,C
2. Select all content in the document. CTRL+A
3. Issue the command to convert all form fields to regular Word text. CTRL+SHIFT+F9
At this point all form fields will be straight text like the rest of the document, and can be edited just as you usually would. You cannot reverse this action, so be certain you have filled out anything that needs to have been filled out before going through the above steps.--
Brian - Windows 10 Pro, 64-Bit, Version 2004, Build 19041
The purpose of education is not to validate ignorance but to overcome it.