WEBVTT 00:00.180 --> 00:02.290 Welcome to this tutorial. 00:02.370 --> 00:07.020 Today we're going to talk about the present perfect tense. 00:07.050 --> 00:09.550 Let's get started. 00:09.620 --> 00:16.660 Now we use the Prism perfect to describe past events which are connected to the present. 00:17.000 --> 00:23.740 Although this tends can be used to describe different situations. 00:23.760 --> 00:26.640 Have a look a deep sample over here. 00:26.840 --> 00:35.120 Sam has lost his keys meaning that he is looking for his keys and he still hasn't found them 00:38.000 --> 00:40.790 we use have or hasn't. 00:40.790 --> 00:44.460 Plus verb EDI or just a verb. 00:44.630 --> 00:49.730 And for the negative we use haven't or hasn't. 00:49.730 --> 00:58.570 Plus verb EDI or just the verb has a look at the examples we know positive sentence. 00:58.570 --> 01:05.440 I have already seen that movie I've already seen that movie negative. 01:05.980 --> 01:11.470 I have not seen that movie yet I haven't seen it yet. 01:12.910 --> 01:14.440 Question form. 01:14.440 --> 01:18.070 Have I seen their movie. 01:18.290 --> 01:25.570 Now the press a perfect is used to describe a experience in our life up to now. 01:25.790 --> 01:29.270 Have a look at deep sample over here. 01:29.310 --> 01:31.860 I've been to Spain and Portugal. 01:31.890 --> 01:34.190 I really want to go to the UK. 01:34.240 --> 01:35.840 Haven't been there yet. 01:37.440 --> 01:42.890 Be an event in the past that has a result in the present. 01:42.900 --> 01:47.430 For example Julie has broken her foot. 01:47.430 --> 01:52.940 Her foot is still in a cast past events. 01:53.070 --> 01:57.090 Lily has broken her foot result in the present. 01:57.090 --> 02:07.650 Her foot is still in a cast see a situation that started in the past and continues until the present. 02:07.650 --> 02:19.040 For example I've lived here for 20 years and I'm still living here now continues until the present deed 02:19.490 --> 02:24.020 an event in the past that has a result in the present. 02:24.110 --> 02:30.110 For example Peter has read 50 pages of this book so far. 02:30.200 --> 02:39.660 There are one hundred and fifty pages left no make sure to pay attention to time markers. 02:39.680 --> 02:43.460 Let's have a look at those time markers. 02:43.460 --> 02:50.710 A We use ever and never to ask or talk about our experiences in life. 02:50.990 --> 02:55.020 For example have you ever eaten Chinese food. 02:55.070 --> 03:05.750 I've never eaten it be we use already to describe an action which has happened before and we use yet 03:06.020 --> 03:11.030 to describe an action which hasn't happened before. 03:11.030 --> 03:14.240 Have a look at the example over here. 03:14.330 --> 03:26.180 I haven't finished this book yet and my sister has already begun reading another one see we use just 03:26.300 --> 03:30.320 well we describe a heavy recent event. 03:30.350 --> 03:33.380 Have a look at the example over here. 03:33.380 --> 03:36.980 My mom has just come home from work 03:39.640 --> 03:49.030 Dean always often etc. can't be used in the present perfect as in the example over here. 03:49.190 --> 03:51.830 She has always loved Dan 03:55.690 --> 04:05.410 E. we use for to describe the length of a time period and we use since to describe the point when the 04:05.410 --> 04:08.280 time period started. 04:08.340 --> 04:11.420 Have a look at the example over here. 04:11.670 --> 04:18.480 Chris has worked here for five months length of a time period. 04:18.630 --> 04:23.300 He has worked here since May 5th May 5th. 04:23.430 --> 04:26.010 The plumed when the time period started.