Difference between past continuous and past perfect continuous tenses

past perfect continuous

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Tài liệu Present perfect continuous & Present perfect continuous and simple pptx

... 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 Nghiên cứu ví dụ sau: Ann’s clothes are covered ... feeling well recently. George vừa mới cảm thấy khỏe gần đây. Chúng ta có thể dùng thì present perfect continuous để chỉ những hành động lặp đi lặp lại trong một khoảng thời gian: Debbie is...

present perfect and present perfect continuous

... 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-ingTrong đó: Have: dùng với các ... tuy không đề cặp nhưng có thể hiểu là anh ấy vẫn còn tiếp tục dạy) Các từ hay đi cùng với Present Perfect Since / forAlready / Not yetEver / neverNow that Dùng để chỉ một hành động...

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in prostate tests psa what is the difference between total psa and free psa

... 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 PSA, which measures the sum of the free PSA and the cPSA ... blood that there is no prostate cancer?Doesn’t the existence of any PSA means that the body is reacting with antibodies against cancerous cells in the prostate. PSA starts out in the fluid that...

Unit 10. Present perfect continuous and simple doc

... 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 chúng ta quan tâm đến hành động mà ... hoàn tất hay chưa. Ở ví dụ trên, hành động sơn tường chưa kết thúc. Has painted là thì present perfect simple (thì hiện tại hoàn thành): Ở thì này, điều quan trọng là sự hoàn thành của hành...

Báo cáo y học: "Difference between pre-operative and cardiopulmonary bypass mean arterial pressure is independently associated with early cardiac surgery-associated acute kidney injury" pps

... 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 ... 5:71http://www.cardiothoracicsurgery.org/content/5/1/71Page 9 of 9 RESEARC H ARTIC LE Open AccessDifference between pre-operative and cardiopulmonary bypass mean arterial pressure is independently associated with early cardiac surgery -associated ... inquiry.Introduction Acute kidney injury (AKI) following cardiac surgery with cardiopulmonary bypass (CPB) can be a devastatingcomplication associated with high morbidity, mortality and resource...

Báo cáo y học: "All duplicates are not equal: the difference between small-scale and genome duplicatio" docx

... similarity.In this study the characteristics of genes (and the proteinsthat they specify), derived from small-scale and whole- genome duplication (small-scale duplicates [SSDs] and whole -genome duplicates ... divergence.DiscussionCollectively, our results demonstrate that the differences between the two types of duplicate are not limited to the wayin which they were generated. Investigation of the functionalsimilarity between ... pairs, but not their differences in essentialityTo investigate how the difference in propensity for complexmembership maps onto the asymmetry in dispensability between the two duplicate types,...

229. The Difference Between Giving Credit and Taking Credit ppsx

... The Difference Between Giving Credit and Taking Credit: PlagiarismWritten by Nancy Steinbach 20 May 2006I'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 said the idea was too general ... English.This is the opening weekend for the movie version of The Da Vinci Code.” The mystery about art, religion and murder is based on the book by Dan Brown. The latest reports say his three-year-old...

BT Past Perfect and Present Perfect Continuous

... 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 in the street. His face and hands are very dirty. You ask: (what/you/do?) 4. A friend of yours is now living in Baker street....

Difference between bring take and fetch

... Difference between bring, take and fetch Certain verbs have very similar meanings that students sometimes find it difficult to use them correctly. Forexample, 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 that file?Please bring that ... what to take with me when I go to London. Fetch To fetch something is to go to the place where it is and then bring it back to the current location.Jack and Jill went up the hill to fetch a...

Difference between in hand and at hand

... 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 always keep a dictionary at hand. When ... meaning.‘Do you remember how many books we sold last week?’ ‘I’m afraid, I don’t have that information to hand .’ (OR …I don’t have that information at hand. ) In hand The phrase in hand ...

Difference between past continuous and past perfect continuous tenses

... 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 FormAffirmative Interrogative NegativeI was reading. Was ... the past. While the past continuous merely shows continuity, the past perfect continuous tense also puts an emphasis on the idea of duration. It is mainly used to indicate the durationof a past...

Difference between present perfect and present perfect continuous tense

... 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 tensesBoth present perfect and present perfect continuous tenses can be used to talk about actions and events thatstarted ... use. They can both beused to talk about actions and situations that started in the past and have continued up to the present. Present perfect tense form: Subject + has/have + past participle...

Difference between present perfect and present perfect continuous tenses

... 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 permanentThe present perfect continuous tense is used to talk about more temporary actions and situations; the present perfect tense is used to talk about ... tense is used to talk about a continuous, but not necessarily finished action orsituation.The present perfect tense is used to talk about a finished action or situation.Compare:I have been gardening...

Future continuous and future perfect tense review

... 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 happening now.Don’t phone them now – they’ll be having lunch. Future perfect tense The future perfect tense is made with will / shall + have + past participle.Affirmative Negative...

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