Open Forms and press New Form. At the top of the editor is Build Me A Form.
Type what you want in plain English. For example: a floating bar for my blog, first name and email, headline about my free AI training, amber button on a dark background. Press Build My Form and it fills in everything below: the form type, the fields with their labels and placeholders, the headline, the supporting line, the button wording, and every colour. The live preview updates at the same time so you see exactly what your visitors will see.
Prefer to talk? Press Talk and say it out loud. That uses your browser's own speech recognition, so nothing is uploaded and it costs nothing extra. The Talk button only appears on browsers that support it.
Ask for changes instead of starting again. Once a form is on screen, a second instruction edits it: make it darker, shorter headline, add a phone field, use my brand blue. It is given the form you already have, so it changes what you asked for and leaves the rest alone.
Made it worse? Press Undo. Everything goes back exactly as it was before the AI touched it, including any field rows it added.
Things worth knowing:
Nothing is saved until you press Save form. The AI only fills in the boxes, so you always get the final say. Name fields are always placed before the email field, and email is always included, because a form without it cannot collect anyone. If it picks colours that would leave your text unreadable on its background, they are corrected automatically and it tells you what it changed. It writes in your trained voice, so headlines sound like you. Train that on the Train Your AI tab. Anything it cannot use, an invented field name or a colour that is not a colour, is either fixed or dropped, and you are told. It needs your own AI key, connected once in AI Studio. Everything else on the form editor works without it.