adv. 有时，间或；时而；
Sometimes I work in the day and sometimes at night.
我有时候在白天工作，有时候在晚上工作。
sometimes是频度副词，表示“有时候”。
如：
Sometimes the little girl laughs，and sometimes she cries．这个小女孩有时笑，有时哭。
Sometimes I went to school by bike and sometimes on foot．我有时骑自行车上学，有时步行去。
sometime是副词，表示“曾经，某时，有朝一日”，常同过去时或将来时连用。如：
Will you go and see your teacher sometime？你哪一天去看看你的老师好吗？
The accident happened sometime last month．事故发生在上月某一天。
some time是名词词组，通常表示“一段时间”。
He rang again after some time．过了一会儿他又打电话来了。
It will take some time to translate this book．翻译这本书要费一些时间
1. He told some lies and sometimes just embroidered the truth.
他说了些谎，有时只是对事实添油加醋了一番。
2. You must have noticed how tired he sometimes looks.
你一定注意到他有时候显得特别疲惫。
3. "Well," he conceded, "I do sometimes mumble a bit."
“嗯，”他承认道，“我有时候说话的确有点吐字不清。”
4. Jane's always annoying her and she takes it out on me sometimes.
简老是惹她生气，她有时就拿我出气。
5. Sometimes things don't turn out the way we think they're going to.
有时事情并不像我们认为的那样发展。
6. Tom admits that playing video games sometimes distracts him from his homework.
汤姆承认玩电子游戏有时会使他无心做作业。