Filling forms ,surveys and questionnaires on iOS

Hello AppleVis members, I was just wondering how to fill in forms efficiently with VoiceOver on iOS without having the issue where the submit button is dimmed because some required fields are not filled in properly. This problem is really quite annoying, especially when I want to fill in multiple forms in a short period of time, only to be blocked from submitting one of them because I missed a question. Does VoiceOver have any features where, when I click on a dimmed submit button, it will immediately tell me exactly which question I did not fill in? I am not talking about any specific form host in particular; I am talking in general about filling in online forms whether that’s google forms, Microsoft forms or survey monkey.