 There are many words that have different stress patterns when they're pronounced in isolation or within larger constitutions. Here is an example. In isolation, the German capital is pronounced Berlin. However, as part of a larger construction, stress shifts to the first syllable as in the Berlin police. This suprasegmental phenomenon of present-day English is referred to as shift stress. In other words, when polysyllabic items do not occur in isolation, as in Berlin, or in predicateive positions such as the German capital is Berlin, but form part of a larger construction, as in the Berlin police, they switch the primary stress leaving the syllable that originally carried the primary stress unstressed. As a guideline, when these items are used predicatevly, the second syllable is stressed. When they're used as attributes, stress shifts to the initial syllable. Here are several examples. Adjectives ending in ease. She is Chinese versus some Chinese girls. Adjectives with unprefix. She felt unhappy versus some unhappy feelings. Adverbs with adjectival use. She is next door versus our next door neighbor. Compound adjectives such as she is blue-eyed versus a blue-eyed girl. Numbers larger than 12. She is 14 versus 14 books. And don't forget place names with adjectival use such as Berlin.