We use the present perfect continuous to talk about an activity that started in the past and is continuing now or has recently finished. Some verbs are almost never used in the present perfect ...
This video breaks down the Present Perfect Continuous tense into the simplest steps possible. You’ll learn how it’s formed, when to use it, and how it sounds in everyday English. Clear examples make ...
Whether teaching or learning the present perfect, it is often useful to present the two verb aspects in a contrastive way. Compare the following: 'Dick Francis has been writing novels since 1957. In ...
- One possible explanation of the high degree of order in the present-day world is that it is just a question of luck. 对 今天 世界 之所以 高度 有序 的 一个 可能 解释 是， 这 恰恰 是 一种 侥幸。
- The journalists must be present at all important events and yet still let them have opportunity to write and file their stories. 记者 必须 出席 所有 的 重要 场合， 但 同时 又 得 让 他们 有 机会 写 消息， 发 消息。
- of swarm since if it is not present, then it is maybe impossible for the swarm to achieve any other group objective. 稳定性 是 群集 行为 的 基本 特性， 如果 群集 不 稳定， 那么 群集 不可能 达到 或 完成 各种 集体 目标 或者 任务。
- I would like to give my present employer a week or ten days ' notice, but otherwise I would be free to begin any time. 但 我 想 给 我 现在 的 老板 一个 星期 到 十 天 的 预先 通知， 否则 我 就 可以 随时 开始 工作。