Jibun de nani mo yaranai kuse ni, monku bakari iu no wa yamete kudasai.

Please stop complaining when you do nothing yourself.

Kare wa kodomo no kuse ni, marude otona no yō na kuchi no kikikata o suru.

Even though he is a child, he talks just like an adult.

Hontō wa sabishii kuse ni, tsuyogatte hitori de heiki na furi o shite iru.

Although they are actually lonely, they act tough and pretend to be fine alone.

Heta na kuse ni, kare wa itsumo puro no yō ni ibatte iru.

Despite being bad at it, he always boasts like a professional.

Shinjitsu o shitte ita kuse ni, dōshite watashi ni damatte ita no desu ka.

Even though you knew the truth, why did you keep quiet about it to me?

Shinnyūshain no kuse ni, senpai ni taishite sonna namaiki na taido o toru beki de wa nai.

Despite being a new employee, you shouldn't take such an insolent attitude toward your seniors.