Is a <form> valid over a <tr>?

Question

Is the following valid HTML? What I am wondering about specifically is the location of the <form> tag.

<table>
    <form>
        <tr>
            <td>
                <input id="txt" type="text"></input>
            </td>
            <td>
                <input id="txt" type="text"></input>
            </td>
            <td>
                <input type="submit"></input>
            </td>
        </tr>
    </form>
</table>

Answer 1

I recomment using the w3c validator http://validator.w3.org/. And no its not valid :-)