This article leads me to believe that there are many (wonderful) ways to configure Grammar Settings: http://office.microsoft.com/en-001/word-help/select-grammar-and-writing-style-options-HP010354284.aspx
It does however not appear when I click the Settings button under Word Options, Proofing. Instead I see this:
Much of the text here is in danish, and I am indeed located in denmark. But I am running an english version of Office 2013 on an english version of Windows 7 and I was writing an english document and was getting Grammar suggestions for the english lannguage (which I want to adjust). There are no other options than "Grammatik" in the drop down.
Please help me adjust the english options in my english software and please do not make me travel to the United States or change my citizenship to do so.