请帮我分析一下这两个句子的结构、句型、时态、主谓宾等.急用,
But just how long Walton can hold firm to his folksy habits with celebrity hunters keeping following him wherever he goes is anyone’s guess.Ever since Forbes magazine pronounced him America’s richest man,with $2.8 billion in Wal-Mart stock,he’s been a rich man on the run,steering clear of reporters,dreamers,and schemers.