Who wouldn't speak well of him?

谁不说他好。

《新英汉大辞典》

Speak well of the law.

对法律要说好话。

youdao

Speak well of friends or else don't speak at all.

说到朋友，就要说好的，否则就别说。

youdao

They were making fun of themselves and other immigrants who did not speak English well.

VOA: special.2009.07.19

And it turns out the big determinant of how well you speak English as an immigrant isn't how smart you are.

作为移民,你的英语口语究竟有多么流利,最大的决定因素并非你有多么聪明

耶鲁公开课 - 心理学导论课程节选

And with that type of an attitude, eventually, he's going to speak English well.

有了那种态度，他最后一定会说好英语的。

留在记忆中的学生 - SpeakingMax英语口语达人

However I do enjoy his company and am inclined to speak well of him.

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"That doesn't speak well of your faith in the company's stock, " Waxman told him.

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They are not necessarily saying that they are motivated to be productive, but they may be saying that they will be loyal to the company and speak well of it to others.

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