How do I convert this SQL into vb.net LINQ statement

I have got a SQL statement that I need to convert into a VB.NET LINQ statement.

Please see the below SQL statement.

Any help would be appericated.

SELECT cu_cursym, sum(netamount)
FROM BORDEREAU t1
INNER JOIN COMMON.CU t2 ON t1.ORIGCURRENCY = t2.CU_CURCDE
WHERE (t1.COVERCONTRACT = 'B09001074') AND (t1.BORDEREAUNO = 5)
group by cu_cursym

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