regular expression

Question

what will be the regular expression for bellow   string 

 

 

<!--[if gte mso 9] |(IE)]>

</td>

</tr>

</table>

<![endif]-->

 

and

 

<!--[if gte mso 9] |(IE)]>

<table align="center" border="0" cellspacing="0" cellPadding="0" width="100%" style="width:100%;"><![endif]-->

 

 

 

what i have tried

 

  string pattern = @"<!--.*-->"