How Do You Spell CONCENTRATED UP ON?
Pronunciation: [kˈɒnsəntɹˌe͡ɪtɪd ˌʌp ˈɒn] (IPA) 
The phrase "concentrated up on" may seem confusing in terms of its spelling, but its pronunciation follows the rules of the English language. The word "concentrated" is pronounced with stress on the second syllable, /ˈkɒnsəntreɪtɪd/. The preposition "up", when followed by a word starting with a vowel sound like "on", can be pronounced with a glottal stop, as in /ʌp̚.ɒn/. Therefore, the correct pronunciation of "concentrated up on" is /ˈkɒnsəntreɪtɪd ʌp̚.ɒn/.
