How do I pass 2 params to method/function?

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C#

I've recently hit a dead end, I've been trying to make a MySql class that would handle the Insert, Delete, Open Connection, Close Connection etc... I made a function to return the INSERT string, the INSERT string is compiled from the pass paramaters/arguments, the dead end is that to make this work I would have to pass in 2 params arrays for the column names and the values, I know that this is not possible and can't think of any other way of doing this.

private string genInsertString(string tableName, params string[] columnNames)
{
    string query = "INSERT INTO " + tableName + " (" + String.Join(", ", columnNames) +"), VALUES(" +  + ")";
    return query;
}

If you could help me I would be very grateful. Thanks