50 examples of irregular verbs with present past and past participle

Ngày tải lên: 31/08/2013, 01:10

... recently, don’t you think? 6 My grandfather died 30 years ago. I (never/meet) him. 4. Fill in the blanks with modals: must - have to - ought to - used to 1. You wash your hands before meals. 2. It’s ... he doesn’t. 6. Children drink a lot of milk. 7. He has two modern cars. He be rich. 8. My eyes are weak. I wear glasses. 5. Give the correct tenses of the verbs in brackets: 1. I’m sorry you’re ... she often appears on the stage as a young girl. Nhan will have to take part in a new play soon. This time she will be a girl of seventeen. In the play, she must appear in a bright red dress and...

Ngày tải lên: 08/07/2013, 01:27

... “Who it has been”) Vậy thì ai làm nhỉ.      Present perfect and past (2) Unit 14. Present perfect and past (2) A Chúng ta không dùng thì present perfect (I have done) khi nói về một thời ... và quá khứ ( present perfect và past simple) qua các câu sau: Present perfect (have done) I’ve done a lot of work today. Hôm nay tôi đã làm nhiều việc. Chúng ta dùng thì present perfect ... “have you done”). Bạn đã bị như thế nào? Past simple (did) I did a lot of work yesterday. Hôm qua tôi đã làm nhiều việc. Chúng ta dùng thì simple past khi đề cập tới một thời điểm đã kết thúc...

Ngày tải lên: 19/01/2014, 17:20

... have been reordered by the events of September 11, 2001; officials in the Department of Health and Human Services and in the Department of Homeland Security; and the interested public. This research ... Drug Application ORA Office of Regulatory Affairs ORO Office of Regional Operations OSD Office of the Secretary of Defense PB pyridostigmine bromide PEO Program Executive Officer PHSA Public Health ... the important but often overlooked issue of DoD-FDA interactions. RAND undertook this study for the Office of the Deputy Assistant to the Secretary of Defense for Chemi- cal and Biological Defense...

Ngày tải lên: 17/02/2014, 11:20

... The mission of the profession of optometry is to fulfill the vision and eye care needs of the public through clinical care, research, and education, all of which enhance the quality of life. ... ophthalmoscopy and the greater the number and size of retinal folds in the detachment. In longstanding detachments, the scarring and contraction of the degenerating retina cause the folds to flatten and ... acuity The clearness of vision that depends upon the sharpness of focus of the retinal image and the integrity of the retina and visual pathway. Visual field The area or extent of space visible...

Ngày tải lên: 22/03/2014, 09:20

... (problems P4 and P5). Finally, Chapter 8 includes the proofs of all formal statements included in the book. Each chapter begins with a short motivation and overview and concludes with a summary and annotated ... low-pass filtering, the approximation is well within 10% in terms of the variances of y and ˆy and u and ˆu. More details on stochastic linearization and its accuracy are included in Chapter 2. It ... the notions of LPNI systems and QLC and listing the problems addressed, the main technique of this book – the method of stochastic lin- earization – is briefly described and compared with the usual,...

Ngày tải lên: 23/03/2014, 15:20

... expression of emotional and psychological distress and ease the burden of living with HIV/AIDS [22,34,35]. A system of informal and formal counselling and sup- port must be accessible to PLHIV and their ... gender issues, and instrumental. Due to the debilitating nature of HIV/AIDS, the physi- cal and medical needs of PLHIV are numerous and can be overwhelming [20]. PLHIV cope with a variety of physical problems, ... alleviate some of these needs. The scope of this paper is to present the identified needs of the PLHIV and their DICGs. Methods Purpose The purpose of the current study was to explore and describe...

Ngày tải lên: 20/06/2014, 08:20

... number of correctly detected onsets, f p is the numb er of false positives (detected onsets with no matching reference onset), and f n is the number of false negatives (reference onsets with no ... phase to the [-π, π]range, and (k, n) is the phase of the kthbininthenth frame. If R(k, n) and j (k, n) are the actual values of the magni- tude and phase, respectively, of bin k in frame n,then the ... models of sound based on the separation of the audio signal into a combination of sinusoids and n oise [22], and further into combinations of sinusoids, noise and transients [23]. Although primarily...

Ngày tải lên: 20/06/2014, 22:20

... cache and a bus speed of 1.07 GHz, providing a theoretical best-case performance of 22.4 GFLOPS [32]. The ADSP-TS201S has a clock speed of 600 MHz and a best-case performance of 3.6 GFLOPS [33], and ... all of the previously described algo- rithms, with the results being given in Sections 5.2 and 5.3, and then discussed in Section 5.4. Th is evaluation includes details of the performance of all ... number of correctly detected onsets, f p is the numb er of false positives (detected onsets with no matching reference onset), and f n is the number of false negatives (reference onsets with no...

Ngày tải lên: 21/06/2014, 00:20

... viscosity of water and MWNT nanofluid decreases with the increasing of temperature. The measured viscos- ityoftapwateris0.8cpsat23.5°CandthatofMWNT nanofluid is 1.0 cps at 24.1°C. On the other hand, ... 6:297 http://www.nanoscalereslett.com/content/6/1/297 Page 7 of 13 NANO EXPRESS Open Access Enhancements of thermal conductivities with Cu, CuO, and carbon nanotube nanofluids and application of MWNT/water nanofluid on a water chiller ... application of nanofluid on cooling, the nanofluid can be used for refrigerant medium of air condi- tioning and refrigeration (AC&R). The nano-refrigerant is one kind of nanofluid with host...

Ngày tải lên: 21/06/2014, 04:20

... were considered, namely half-duplex and full-duplex amplify- and- forward in [13, 15], respectively, and decode -and- forward in [14], and the respective merits of multicell processing and MS cooperative transmission ... for the linear Wyner model with conferencing MSs is presented for both cases of inter- cell conferencing with intracell TDMA and intracell conferencing (Propositions 3 and 5). The considered transmission ... scenario of interest, which consists of a modification of the linear Wyner model with intracell TDMA where intercell conferencing channels are present. 2.1. System model We consider the uplink of a...

Ngày tải lên: 21/06/2014, 22:20

... of the patterns from two pieces of nanocrystals. Both of interplanes spacings, whose values are about 0.237 nm and lie at an angle of near to 60°, are of regular parallelogram with a center and corresponding ... of China (Grant number of 60576023 and 60636010), the State Key Program for Basic Research of China (2004CB619004), the State Key Program for Science and Technology of China (2009ZX02101-4) and ... reaction process with pure starting materials of Al 2 O 3 and TiO 2 in a mole ratio of 1.5:1. The mixed powder in this ratio was ball-milled for 24 h, and then sintered at 1 ,500 °C for 7 h to...

Ngày tải lên: 22/06/2014, 00:20

... 3.47 3.45 3.29 3.16 200 1501 0 0500 Bands 0 1000 2000 3000 4000 Radiance (c)Spectrumfrom2 200 1501 0 0500 Bands (b)Spectrumfrom1 0 1000 2000 3000 4000 500 0 Radiance 200 1501 0 0500 Bands (e)Spectrumfrom4 0 2000 4000 6000 Radiance 200 1501 0 050 ... important to ease of access and processing of the data and were not introduced into SPIHT previously. Coding different areas of the image transform separately enable random access and region of interest ... three dimensions with random access decodability that retains spatial and quality scalability requires significant changes of the transform and tree structure and search mode, and the addition of a post-compression...

Ngày tải lên: 22/06/2014, 00:20

... ai làm nhỉ. He lost his key (past simple) but now he has found it ( present perfect). Anh ấy đã làm mất chìa khóa nhưng bây giờ anh ấy đã tìm ra. Thì present perfect là thì hiện tại hoàn ... viết sách). C Chúng ta dùng thì present perfect để đưa ra những thông tin mới (xem UNIT 7). Nhưng nếu chúng ta tiếp tục nói về điều đó, chúng ta dùng thì past simple: A: Ow! I’ve burnt myself. ... but now he has shaved it off. (= he doesn’t have a beard now) Jack đã để râu nhưng bây giờ anh ấy đã cạo hết. (= bây giờ anh ấy không có râu) They went out after lunch and they’ve just come back....

Ngày tải lên: 22/06/2014, 21:20

... và quá khứ ( present perfect và past simple) qua các câu sau: Present perfect (have done) I’ve done a lot of work today. Hôm nay tôi đã làm nhiều việc. Chúng ta dùng thì present perfect ... Ví dụ như: Today, this week, since 1985. Past simple (did) I did a lot of work yesterday. Hôm qua tôi đã làm nhiều việc. Chúng ta dùng thì simple past khi đề cập tới một thời điểm đã kết thúc ... Luân đôn. Anh ấy đã sống ở đó được bảy năm rồi. Lan lived in Scotland for ten years. Now he lives in London. Ian đã sống ở Scotland được mười năm. Bây giờ anh ấy đang sống ở Luân đôn. I have...

Ngày tải lên: 22/06/2014, 21:20

... were categorized: ㆍType of discharge (TYPEDIS): Purulent (≥ 50% pus) or mucopurulent with flakes of pus (＜ 50% pus) ㆍSmell of discharge (SMELL): Fetid or neutral smell ㆍSize of uterus (USIZE): Uterus ... 216, 164-165. Associations of endometritis with ovarian cysts and body condition score loss 339 Tab l e 1 . F-Values, levels of significance ,and least squares means of the variables remaining ... discharge (p = 0.02) and having a ML100 of more than 3,824 kg (p = 0.001). For OC, the SMELL by TYPEDIS and the PARITY by TYPEDIS interactions were important with p-values of 0.04 and 0.02, respectively....

Ngày tải lên: 07/08/2014, 23:22

Ngày tải lên: 09/08/2014, 03:21

Ngày tải lên: 09/08/2014, 20:20

Ngày tải lên: 11/08/2014, 10:22

Ngày tải lên: 11/08/2014, 21:22