Earlier quoted context omitted.
> a Wumao For reference, the initial W doesn't represent a sound, so this would be "an wumao". (Same for Wuhan.)
Applying English rules to Chinese words is the ultimate folly. Also, it really depends on your dialect of Chinese, I always hear wu with a w (e.g. woo) if the wu is at the beginning of the word. Inside a word (like fuwuyuan), I usually don't hear or say it.
The more I think about this, the less I understand what you were trying to say.
The first problem is of course that a(n) is an English word. But more than that, every sentence of English must apply the rules of English to every part of itself. If instead of "scare" we used the Chinese loanword xia, we would say things like "you xiaed me". We would not say "you xia me" with the past tense present but unmarked, nor would we say "you xiale me".