<form action="/form.php" autocomplete="on">
  First name:<input type="text" name="first_name"><br>
  Last name: <input type="text" name="last_name"><br>
  E-mail: <input type="email" name="email" autocomplete="off">
  <input type="submit">
</form>

<label for="frmNameA">Name</label>
<input type="text" name="name" id="frmNameA"
placeholder="Full name" required autocomplete="name">

<label for="frmEmailA">Email</label>
<input type="email" name="email" id="frmEmailA"
placeholder="name@example.com" required autocomplete="email">

<!-- note that "emailC" will not be autocompleted -->
<label for="frmEmailC">Confirm Email</label>
<input type="email" name="emailC" id="frmEmailC"
placeholder="name@example.com" required autocomplete="email">

<label for="frmPhoneNumA">Phone</label>
<input type="tel" name="phone" id="frmPhoneNumA"
placeholder="+1-555-555-1212" required autocomplete="tel">