Difference between past continuous and past perfect continuous tenses

Ngày tải lên: 18/08/2013, 04:10

... Đừng quấy rầy tôi bây giờ. Tôi đang làm việc. Present perfect continuous & Present perfect continuous and simple Unit 9. Present perfect continuous A It has been raining. Xem ví dụ sau: ... waiting. We’ve been waiting for an hour.         Present perfect continuous and simple Unit 10. Present perfect continuous and simple A Nghi...

Ngày tải lên: 19/01/2014, 17:20

... đây, hiện tại anh ta không nhất thiết phải đang ở Hà nội) . Present Perfect (Thì Hiện tại hoàn thành) and Present Perfect Continuous (Thì Hiện tại hoàn thành tiếp diễn) ·Dùng với: now that ... Have you been crying for long time? Mắt của em đỏ. Có phải em đã khóc rất lâu không? Present Perfect Continuous Công thức: Subject + have/has + been + V-ing Trong đó:  Have:...

Ngày tải lên: 02/03/2014, 15:18

... In prostate tests PSA what is the difference between total PSA and free PSA? What is the normal range? In addition, how can it be that if there is ANY prostate specific antigen in the blood ... is a protein produced by the cells of the prostate gland. The most frequently used PSA - prostate- specific antigen test - is the total...

Ngày tải lên: 21/03/2014, 12:19

... thư. They’ve played tennis three times this week. Unit 10. Present perfect continuous and simple Unit 10. Present perfect continuous and simple A Nghiên cứu ví dụ sau: Ann’s clothes are ... trước đây màu trắng. Bây giờ nó màu xanh. Cô ấy đã sơn trần nhà. Has been painting là thì present perfect continuous (thì hiện tại hoàn thành tiếp diễn): Ở đây chún...

Ngày tải lên: 22/06/2014, 21:20

... this article as: Kanji et al.: Difference between pre-operative and cardiopulmonary bypass mean arterial pressure is independently associated with early cardiac surgery -associated acute kidney ... 5:71 http://www.cardiothoracicsurgery.org/content/5/1/71 Page 9 of 9 RESEARC H ARTIC LE Open Access Difference between pre-operative and cardiopulmonary b...

Ngày tải lên: 10/08/2014, 09:22

... similarity. In this study the characteristics of genes (and the proteins that they specify), derived from small-scale and whole- genome duplication (small-scale duplicates [SSDs] and whole -genome duplicates ... divergence. Discussion Collectively, our results demonstrate that the differences between the two types of duplicate are not limited to the way in which...

Ngày tải lên: 14/08/2014, 08:20

... The Difference Between Giving Credit and Taking Credit: Plagiarism Written by Nancy Steinbach 20 May 2006 I'm Steve Ember with IN THE NEWS in VOA Special English. This is the opening ... else's words or ideas. They said he copied the main idea of their book " ;The Holy Blood and the Holy Grail." A High Court judge in London did not agree. He sai...

Ngày tải lên: 14/08/2014, 21:21

... to each other regularly now. We for years Exercise 3: Put the verb into the present continuous or present perfect continuous. 1. Maria (learn) English for 2 years. 2. Hello, Tom. I (look) for ... PRESENT PERFECT CONTINUOUS 1. John looks sunburnt. You ask: (you/sit in the sun?) 2. You have just arrived ... is waiting for you. You ask: (you/wait/long?) 3. You meet a friend...

Ngày tải lên: 28/08/2014, 16:40

... Difference between bring, take and fetch Certain verbs have very similar meanings that students sometimes find it difficult to use them correctly. For example, the verbs bring, take and fetch ... confused. Differences Between Bring, Take and Fetch Bring is used to talk about movement to the place where the speaker is at the moment of speaking. Can you bring me t...

Ngày tải lên: 11/07/2015, 13:26

... Difference between in hand and at hand These expressions are often confused. When you have something in your hand, you are holding it. Have you got anything in your hand? You are hiding something ... something in your hand, aren’t you? The expressions at hand and in hand have literal meanings. To have something at hand is to have it conveniently near you. I a...

Ngày tải lên: 11/07/2015, 13:26

... could see that she had been crying. Difference between past perfect continuous and past continuous tenses Both past continuous and past perfect continuous tenses can be used to talk about actions ... Difference between past continuous and past perfect continuous tenses Form Affirmative Interrogative Negative I was reading. Was ... the past. W...

Ngày tải lên: 11/07/2015, 13:26

... Difference between present perfect and present perfect continuous tense The present perfect tense and present perfect continuous tense have very similar use. ... knitting for hours. Difference between present perfect and present perfect continuous tenses Both present perfect and present perfect continuous tenses can be used to tal...

Ngày tải lên: 11/07/2015, 13:26

... Difference between present perfect and present perfect continuous tenses The present perfect continuous tense is used to talk about a continuous, but not necessarily ... morning. (Focus on completion) Temporary and permanent The present perfect continuous tense is used to talk about more temporary actions and situations; the present perfect tense is use...

Ngày tải lên: 11/07/2015, 13:26

... Future continuous and future perfect tense review The future continuous tense is made with will / shall + be + -ing. Affirmative Negative ... use the future continuous tense to say that something will be in progress at a particular moment in the future. This time tomorrow, I will be playing in the park. The future continuous tense is ... is probably happenin...

Ngày tải lên: 11/07/2015, 13:59