When that doesn't work they sometimes have the sense to seek help.

当那样做行不通时，他们会想到时不时地去寻求帮助。

《柯林斯英汉双解大词典》

I think it is enjoyable, though I sometimes have some trouble in study.

我认为这是十分愉快的，虽然我有时在学习上有一些困难。

youdao

We sometimes have chances to make happy moments in our lives, but we often find an excuse to do something else.

我们有时有机会在生活中创造快乐的时刻，但我们经常找借口去做其他的事情。

youdao

Large ships that travel to the area sometimes have accidents resulting in leaks of gasoline or oil.

VOA: special.2009.06.03

I sometimes have trouble with students who talk very softly which is alright in itself and sometimes very sweet.

有时候有些同学说话轻声轻语,这样说话本身没什么,但我却有时听不太明白。

麻省理工公开课 - 电影哲学课程节选

And so, and so those, those people sometimes have a harder time, it seems.

所以，这些，这些人有时候就比较有困难了，似乎是这样。

对于赞助入学的看法 - SpeakingMax英语口语达人

How do you run a company with three businesses that sometimes have conflicting interests?

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Smartphone launches sometimes have to build up steam before they can go full speed ahead.

ENGADGET: ComScore: iPhone up to 35 percent of US smartphone share in November, Android steady

Now I'm in so many meetings I sometimes have to step out and catch a breath.

FORBES: Magazine Article