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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 .
The modern English word has is the 3rd person singular present tense of the verb to have. It is a purely Germanic word with no connection to Latin or French. The verb comes â¦ from Middle English haven, to have; this derives from Old English habban, to have (compare Old Frisian habba, Gothic haba, German haben).