they livin' it up at the hotel請問這句動詞在那？living是形容詞，如果是動詞前面應該有are才對？謝謝?

loving adj,=feeling or showing love; eg a loving cake=they are loving it up at the M-hotel=the M's slogan=they're loving it=they (are) loving it--->Re:-they (are) livin' it (up at the hotel.) Verb (are) is a word or phrase indicating what somebody do, what state somebody is in(the Mac-cake shop)and what's becoming of somebody in TW.

口語簡化，省略B動詞，不講究文法