... afternoon They haven’t heard anything news from their son Have you ever been to England? The presentperfecttense Form: (+) S + have/ has + PP I have lived here for years (-) S + have/ has + not + ... school in Tu Doan - Tom hasn’t visited Mau Son before - How long have you lived here? The presentperfecttense in passive voice S S + + have/has + PP have/ has been + PP + + E.g I have prepared ... write => start => read => shop => cry => done written started read shopped cried Examples Which tense is used in the following sentences? He has lost his key I have seen this film several times...
... 1.3 PresentPerfect expresses finished events connected to the present10PresentPerfect for repeated or habitual actions ……………………… ….11 The application of games in teaching PresentPerfectTense ... ……….6 The PresentPerfecttense and its meaning ………………………………….……… 1.2.1 PresentPerfect expresses indefinite past actions ………………….…………7 1.2.2 PresentPerfect expresses state up to the present …………… ... distinction In fact, tense and aspect can combine in various ways, giving different types, such as: the Present Progressive tense, the PresentPerfect tense, the Past Perfect Progressive tense Having...
... spending Who ……………………… that necklace? a) gave you b) has given you c) gives you c) had given you 10 There …………………… a plane crash near Bristol last night a) was b) had been c) have been d) is Answers ... know what to expect in my new job I spent all my childhood in France Who gave you that necklace? 10 There was a plane crash near Bristol last night Be first to know when grammar rules change! Sign...
... milk He has two modern cars He be rich My eyes are weak I wear glasses Give the correct tenses of the verbs in brackets: I’m sorry you’re leaving I hope you ….…… …………………………… (come) back...
... on duration I've been ironing my shirts this morning Time expressions with presentperfect Meaning with presentperfect tenses is associated with certain time expressions Contrast with past simple ... Previous unit Back Next Next unit Exercises Advanced Language Practice Contents Presentperfect continuous Exit Presentperfect continuous (progressive) can refer to a range of meanings, depending ... Language Practice Exit Put each verb in brackets into either the past simple, presentperfect simple or presentperfect continuous Ever since the day I (1) (decide) to move to London, I (2) (worry)...
... μm⋅ Mg Solution: ( a) Mg 10 kg 10 kg Gg = = = −3 mm m m 10 m Mg Gg = mm m ( b) mN μs mN μs ( c) = 10 −3 10 = N −6 = s 10 N kN = s s kN s ( −6 μm⋅ Mg = 10 )( ) m 10 kg = 10 −3 m⋅ kg μm⋅ Mg = mm⋅ ... 66.73 × 10 − 12 m kg⋅ s nN = 10 −9 N Given: m1 = kg m2 = 12 kg d = 800 mm Solution: F = G m1 m2 d F = 10. 0 nN W1 = m1 g W2 = m2 g W1 W1 = 78.5 N W2 = 118 N = 7.85 × 10 W2 F = 1.18 × 10 F 10 Problem ... s 10 s Mg Gg = ms s N = mm ( b) 1N 10 −3 = 10 3N m m = kN m N kN = mm m mN ( c) kg⋅ μs 10 = mN kg⋅ μs −3 −6 10 = N = kg⋅ s kN kg⋅ s kN kg⋅ s Problem 1-5 Represent each of the following with SI...
... PresentPerfect Continuous tense of any English verb is formed from the PresentPerfect of to be, followed by the present participle of the verb For instance, the PresentPerfect Continuous tense ... following example, the verb in the PresentPerfect Continuous tense is underlined e.g The bus has been waiting for one hour The use of the PresentPerfect Continuous tense in this example indicates ... As is the case with other English tenses, questions and negative statements in the PresentPerfect are formed using the auxiliary In the case of the Present Perfect, the auxiliary is have or...
... Where have the guerrillas been hiding? I should have said something What should I have said? In the present simple and past simple we use a form of QUESTION WORD AUXILIARY SUBJECT Where How What people ... subject and object (A) People aren't giving you enough information Ask questions with who or what ? ? 10 Something has happened ~ Oh? What has happened? I've invited someone to tea ~ Well? Who have...
... −40 −2 101010 Angular frequency [rad/s] (a) Original system Gain [dB] −20 −50 Gain Phase Phase [deg] 0 −40 −2 101010 Angular frequency [rad/s] 10 Gain [dB] 30 20 Gain Phase 10 −2 10 Phase ... −40 100 Gain Phase −60 Phase [deg] 0 −80 −2 101010 Angular frequency [rad/s] Gain [dB] 40 10 Gain Phase −2 10 20 Phase [deg] (b) Modified system 1010 Angular frequency [rad/s] (c) Modification ... (Performer K10S; The Modified Taught Data Method 0 Gain [dB] −20 −40 100 Gain Phase −60 Phase [deg] 134 −80 −2 101010 Angular frequency [rad/s] (a) Original system Gain [dB] −20 −40 100 Gain...