YOU SAID:

Lets try not to speak in a pontificate manner and tell her not to be a prima donna

INTO JAPANESE

尊大な言い方はやめて、彼女にプリマドンナにならないように言いましょう

BACK INTO ENGLISH

Stop being so arrogant and tell her not to be a prima donna.

INTO JAPANESE

傲慢なことはやめて、彼女にプリマドンナにならないように伝えてください。

BACK INTO ENGLISH

Stop being so arrogant and tell her not to be a prima donna.