here is an example of two columns:
<table><tr><td>
<p>Your Name (required)
[text* your-name] </p>
<p>Your Email (required)
[email* your-email] </p>
<p>Your Phone (required)
[text text-33] </p>
<p>Subject
[text your-subject] </p>
</td><td>
<p>Your Message
[textarea your-message] </p>
<p>[submit "Send"]</p>
</td></tr></table>