Manage to do sth. , try to do sth. , try doing sth.

这组短语都有努力尝试做某事的意思。

Try one's best to do sth.

要尽力去做某件事情的意思。

Try not to do STH.

尽力不做某事。

D try one's best to do sth.

“尽某人的最大努力做某事”，是固定短语。