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So don't worry so much about how to use  had had  as a unit of grammar, they will come together naturally when you want to express the verb ' to have ' in the past perfect. Let's consider a different verb for a moment like  to want .
#3 (permalink) Fri Jan 14, 2011 12:18 pm Can I have more than one and in a sentence? I think they are grammatically correct though it is advisable that you not use more than 2 and in a sentence._________________Rolling stone gathers no moss.Bookaholic_English. I'm here quite often ;-) Joined: 17 Sep 2010Posts: 578. In this story you'll learn how to use the English articles.msriram had only used two. I would say that it is best not to use more than one. Therefore I showed how they can both be removed. You could always replace one to make a simpler sentence._________________Inside every old person is a young person wondering what happened. Terry Pratchett.