Rowspan y Colspan

PRIMERA TABLA

...	...
...	...	...	...	...	...
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<table border>

<tbody>

<tr>

   <td>...</td>

   <th colspan="5">...</th>

</tr>

<tr>

   <td>...</td>

   <th>...</th>

   <th>...</th>

   <th>...</th>

   <th>...</th>

   <th>...</th>

</tr>

<tr>

   <th>...</th>

   <td>...</td>

   <td>...</td>

   <td>...</td>

   <td>...</td>

   <td>...</td>

</tr>

<tr>

   <th>...</th>

   <td>...</td>

   <td>...</td>

   <td>...</td>

   <td>...</td>

   <td>...</td></tr>

</tbody></table>

SEGUNDA TABLA

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<table border>
 <tbody>
<tr><th rowspan="2">...</th>
     <td>...</td> <td>...</td> <td>...</td> <td>...</td>
 </tr>
<tr><td>...</td> <td>...</td> <td>...</td> <td>...</td>
 </tr>
<tr><th>...</th>
     <td>...</td> <td>...</td> <td>...</td> <td>...</td>
 </tr>
</tbody></table>
TERCERA TABLA

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...		...	...
...	...	...	...
	...	...	...

<table border>

 <tbody>

<tr> <td>...</td><th rowspan="2">...</th>

  <th colspan="2">...</th>

 </tr>

<tr> <td>...</td><th>...</th><th>...</th>

 </tr>

<tr> <th rowspan="2">...</th>

      <th>...</th><td>...</td><td>...</td>

 </tr>

<tr> <th>...</th><td>...</td><td>...</td>

 </tr>

</tbody></table>