Adverbs of time tell us when an action happened, but also for how long, and how often. They are extremely common in English. Adverbs of time have standard positions in a sentence depending on what the adverb of time telling us. These simple rules for adverbs of time will help you to use the the right way.
时间副词用于表达事情什么时候发生，发生多久， 发生的频率。它们在英语中是极其常见的，并且根据表达的内容来放置其在句子中的位置。下面几个规则帮助你正确使用它们。
Adverbs that tell us when 关于when的时间副词
Adverbs of time often work best with when placed at the end of sentence.
关于when的时间副词通常放在句子末尾。
I went to the park yesterday.
I saw Tomas today.
I'm going to tidy my room tomorrow.
I will call you later.
I saw the movie last year.
I called you five minutes ago.
All adverbs that tell us when can be placed at the beginning of the sentence to emphasize the time element. Some can also be put before the main verb in formal writing, while others cannot occupy that position.
所有关于when的时间副词都可以放到句首用以强调。在一些正规写作中，有一些也可以放到主要动词前面，但不是全部。
Later Irvine ate some cakes. (the time is important)
Irvine later ate some cakes. (this is more formal, like a policeman's report)
Irvine ate some cakes later. (this is neutral, no particular emphasis)
Adverbs that tell us for how long 关于how long的时间副词
Adverbs of time describing for how long an action occurred usually work best at the end of a sentence.
关于how long的时间副词通常也是放在句子末尾。
she stayed at her grandmother's house all day.
My father was up with heartburn for hours.
I have been going this school since 1996.
In these adverbial phrases that tell us for how long, for is always followed by an expression of duration, while since is always followed by an expression of a point in time.
在这些关于how long的句子当中，for经常放在一段时间前面，而since经常放在一个时间点前面。
I stayed in Shanghai for three days.
The French monarchy lasted for several centuries.
I haven't seen you since Friday.
Irvine has been working here sice 2008.
Adverbs that tell us how often 关于how often的时间副词
Adverbs that tell us how often express the frequency of an action. They are usually placed before the main verb but after auxiliary verbs (such as be, have, may, must). The only exception is when the main verb is to be, in which case the adverb goes after the main verb.
关于how often的副词经常放在主要动词前面一些辅助动词后面（如be, have, may, must）。唯一的例外是当主要动词是to be的时候，副词跟在主要动词后面。
I often eat vegetarian food.
He never drinks milk.
You must always fasten your seat belt.
I am seldom late.
He rarely lies.
Many adverbs that express frequency can also be placed at either the beginning or the end of the sentence, although some cannot be. When they are placed in these alternate positions, the meaning of the adverb is much stronger.
一些表达频率的副词可以放在句子的开头或者结尾，虽然有些不可以。当它们被放在这些交替的位置时，副词的意思是非常强烈的。
| Adverb that can be used in two positions | Stronger position | Weaker positon |
|---|---|---|
| frequently | I visit England frequently. | I frequently visit England. |
| generally | Generally, I don't like spicy food. | I generally don't like spicy foods. |
| normally | I listen to music normally. | I normally listen to music. |
| occasionally | I go to the opera occasionally. | I occasionally go to the opera. |
| often | Often, I jog in the morning. | I often jog in the morning. |
| regularly | I come to this museum regularly. | I regularly come to this museum. |
| sometimes | I get up very early sometimes. | I sometimes get up very early. |
| usually | I enjoy being with children usually. | I usually enjoy being with children. |
Some other adverbs that tell us how often express the exact number of times an action happens or happened. These adverbs are usually placed at the end of the sentence.
一些表达确切次数的副词，通常放在句子末尾。
I play basketball monthly.
I play basketball once a week.
I play basketball five days a week.
I played basketball seven times.
Order of adverbs of time 时间副词的顺序
If you need to use more than one adverb of time in a sentence, use them in this order:
如果你在一个句子中使用超过一个时间副词，按照下面的顺序：
1.how long 2.how often 3.when
- She volunteered at the hospital (1) for three days (2) every month (3) last year.
Using yet 使用yet
Yet is used in questions and in negative sentences to indicate that something that has not happened or may not have happened but is expected to happen. It is placed at the end of the sentence or after not.
Yet被用在问句或否定句中去指明一些没有发生或者可能没有发生但希望发生的事。放置在句子末尾或者not的后面。
Have you finished you homework yet?
No, not yet.
They haven't met him yet.
Haven't you finished yet?
Using still 使用still
Still expresses continuiry. In positive sentences it is placed before the main verb and after auxiliary verbs such as be, have, might, will. If the main verb is to be, then place still after it rather than before. In questions, still goes before the main verb.
still表达连续性。在肯定句中它被放置在主要动词前面辅助动词后面，诸如：be, have, might, will. 如果主要动词是to be，就放置在它的后面。 在问句当中，still放置在主要动词前面。
She is still waiting for him.
Irvine might still want it.
Do you still work for the company.
Are you still here?
I am still hungry.
Adverbs of time list 列举一些时间副词
After reading this list of adverbs of time, you may be able to come up with sevaral on your own. Remember that adverbs of time always tell us when, how long, and how often something happens.
这里只列出一些。记住，时间副词通常告诉我们事件发生的时间，时长，频率。
when: Yesterday, Today, Tomorrow, Later, Last year, A few days ago, Now...
How long: All morning, For hours, Since last week...
How often: Frequently, Never, Sometimes, often, Annually, Once a week...