[误] My father will be back from America at present.
[正] My father will be back from America presently.
[析] presently有两个意思：其一是最近，不久，其二在美语中是现在之意，与at present相同。而for the present为暂时，如： I teach English in the school for the present.
[误] I'll be back at the moment.
[正] I'll be back in a moment.
[析] at the moment 其意为"现在，当时"，而in a moment意为"马上过一会"，与in a minute意思相近。
[误] The train from Shanghai will arrive here in time.
[正] The train from Shanghai will arrive here on time.
[析] on time为"准时"，而in time有两个含意。其一是"及时"，如：The doctor arrived in time。其二是"将来，终究"。
[误] I met an old friend sometimes last month.
[正] I met an old friend sometime last month.
[析] Sometime 过去，或者将来某时。 Sometimes 有时
如： Sometimes I go to school by bus.?Some time 一些时间
如： I need sometime to do my homework.? Some times 几次
如： I went to Shanghai sometimes this month.
at times 有时，偶尔?
at all times 经常?
some other time 改天
[误] I had met an old friend three days ago.
[正] I had met an old friend three days before.
[正] I met an old friend three days ago.
* ago 用在时间状语中时，主句中谓语动词一般用过去时，而before用于时间状语时则主句的谓语动词宜用完成时态。
[误] He studied very hard. and at the end he passed the exam.
[正] He studied very hard, and in the end he passed the exam.
[析] in the end=at last 意为"最终，终于"，表达经过若干努力而达到的结果。而at the end是在某事的结束时如何如何，如：At the end of class, the teacher gave us some story books。
[误] I will come here to help you each three days.
[正] I will come here to help you every three days.
[析] every three days 为"每三天"，即每隔二天，而every other day为每隔一天。
[误] He didn't go to the cinema yesterday. and I didn't go, too.
[正] He didn't go to the cinema yesterday and I didn't go either.
[析] 英语中表示"也"，有4个字，also, as well, too, either，但either用于否定句中，而前3个用于肯定句中。在肯定句中too与as well一般要用在句尾，而also则可用于句中。如：She went to the party and her boy friend went there too. 又如： I've also read her other novels.
[误] We should help the poor girl in anyway.
[正] We should help the poor girl in any way.
[析] anyway为"不管怎么"讲，"无论如何"，如：What a terrible accident, anyway no one was hurt.
any way 为"任何方式"。这种常见的'错误还发生在以下几组词中，如：
everyday 日常的 every day 每天
faraway 遥远的 far away 远离
altogether 总计 all together 一块，大家一起
already 已经 all ready 全准备好了