あるよう

seems to be, appears to be

→ 有る
auxiliary Rare #28,729
seems to be, appears to be あるようだ is a somewhat formal way to say that something seems to be the case.
JA: 彼は忙しい人であるようだ。
EN: He seems to be a busy person.
Conjugation of 有る
Indicative

彼女はどこかで私に会ったことがあるようだった。

She seemed to have met me somewhere before.

彼の父は弁護士であるようだ。

It seems that his father is a lawyer.

彼女は以前どこかで私を見かけたことがあるようだった。

She seemed to have seen me somewhere before.

トムは確かに裕福な家の出身であるようだ。

Tom certainly seems to come from a wealthy family.

その議論に関する討論は合法であるようだ。

The debate concerning that discussion appears to be legal.

ケンは人懐っこい人であるようだ。

Ken seems to be a friendly, outgoing person.