You can enable the "Collect email addresses" option in form settings to add email address field in your Google Forms. Please follow the instructions below.
You can add a short answer question with email address response validation to accept valid email address. This gives you more flexibility than the collect email address option. You can add this question anywhere in the form, enter the desired field label, and make this as an optional or required question. Please follow the instructions below.
Click Submit to finish.
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