I said I would do my best.

我表示过要尽最大努力。

youdao

I promised that I would do my best.

我承诺我决心尽最大努力。

youdao

I decided I would do my best to try to win.

事在人为， 努力干下去， 总会赢得胜利的。

youdao

When I do my best to imagine some kind of existence that would be desirable or attractive forever, it just doesn't work. It becomes a nightmare.

当我尽力想象一种,令人永远期望迷恋的存在时，根本想象不出，总是变成恶梦。

耶鲁公开课 - 死亡课程节选

"I am confident given the chance I would do my best, " said Whatmore, 53, previously linked to the India job.

BBC: Whatmore eyes Pakistan challenge

"I was shocked to hear the marathon was the target of terrorism and I would like to try to do my best to overcome that fear and unite the runners, " she said through a translator.

NPR: Memories Of Safe Olympics Assure London Runners

"When Mayor Bach was elected, I told him I was here to serve, and would do so loyally and do my best to lead the department in the direction he wanted to take the city, until such time that he felt he needed to bring in his own chief, " the release from Myers stated.

CNN: STORY HIGHLIGHTS