<table>
<tr>
<td width='4'></td>
</tr>
<tr>
<td rowspan='2'></td>
</tr>
<tr>
<td rowspan='2'></td>
</tr>
<tr>
<td colspan='2'>
<table border='2'>
<tr>
<td></td>
<td>
<input type='text' value="hello" />
</td>
</tr>
</table>
</td>
</tr>
</table>