あの子こ、ほんとに礼儀正れいぎただしいよね。

ano ko, honto ni reigitadashii yo ne.

That kid is really well-mannered, isn't he. casual

新入社員しんにゅうしゃいんはみんな礼儀正れいぎただしかったです。

shinnyuushain wa minna reigitadashikatta desu.

All the new employees were well-mannered. neutral