I'm used to hearing odd pronunciations of some English words from non-native speakers or from speakers of other dialects of English, e.g., Indian English. These are often simply a matter of stressing some syllable other than the standard. A classic example is the pronunciation of economic in which the accent is on the second syllable rather than on the third. Today I heard what I would consider one of these non-standard pronunciations from someone who I would have thought was a native speaker of English, UK PM Gordon Brown. He pronounced the verb contribute with the emphasis on the first syllable. Is this the standard UK pronunciation?