I have often thought about this problem.

我经常思考这个问题。

《柯林斯英汉双解大词典》

"I have often," said Smee, "noticed your strange dread of crocodiles."

“我常常注意到，”斯迈说，“你对鳄鱼有种奇怪的恐惧。”

youdao

Everything always tasted to me like cod-liver oil, and I have often wished that I should never have to eat.

对我来说，每样东西都尝起来像鱼肝油，我常常希望自己永远不用吃东西该多好。

youdao

And I have often tried to remember how you looked.

VOA: special.2009.12.24

In the real world, it's often not desirable to say that I have a point here, and a point here, therefore the next point will surely be here.

在现实生活中，说这个点在这,那个点在那，所以下一个点在这儿，这种话往往是没有用的。

麻省理工公开课 - 计算机科学及编程导论课程节选

So it's often, I think people have a hard time delivering bad news,

有些时候，人们会觉得告诉客户坏消息是很难的事情，

正直是最好的 - SpeakingMax英语口语达人

This is a classic case of FINRA playing what I have often called regulatory hide-and-seek.

FORBES: MetLife Broker Barred After Repaying Customer In Full With Interest

And I have often found myself imagining ways of fitting tab A into slot B.

NEWYORKER: Notable Quotables

Over the last 18 years I have often thought about what happened to Jaycee.

BBC: Couple deny California abduction