ともあろう
(To mo aro u)
of all people / someone as prominent as.
Connection rules
- +Noun (role / title) + ともあろう + noun (often person: 者, 人, 男, 女).
- +Critical / disappointed — 'someone of X's stature should not have done Y'.
- +Common with prominent roles: 先生, 大人, 社長, 医者, 警察官.
Examples
1.
先生ともあろう者が、嘘をつくとは。

Sensei tomo a rousha ga, uso o tsuku to wa.
For a teacher of all people to tell a lie!
「of all people / someone as prominent as」
2.
大人ともあろう者が、そんな行動をとるべきではない。

Otona tomo a rousha ga, sonna koudou o toru beki de wa nai.
A grown adult shouldn't behave that way.
「of all people / someone as prominent as」
Practice
For a police officer of all people to commit a crime is truly regrettable.
___が、犯罪に手を染めるとは情けない。
Romaji also accepted