1. All the faith he had had had had no effect on the outcome of his life. Well, talk about lexical ambiguity. But as strange as this sentence might sound, it is actually grammatically correct. The sentence relies on a double use of the present perfect. The two instances of “had had” play different grammatical roles in the sentences—the first is a modifier while the second is the main verb of the sentence.
For more sentences: http://tinyurl.com/m97v6kb
Source: grammarly