1 00:00:01,320 --> 00:00:09,660 In this grammar refresh, we'll be talking about how to use the preposition on and in when talking about 2 00:00:09,660 --> 00:00:13,470 dates and days or months and years. 3 00:00:14,750 --> 00:00:23,190 So when we use on it will be using this preposition with dates and dates, when we say dates really 4 00:00:23,270 --> 00:00:25,970 mean that the actual number of the date. 5 00:00:26,630 --> 00:00:26,990 Right. 6 00:00:28,400 --> 00:00:38,450 So we use on these types of things dates or dates and of shorter periods of time, so we're arriving 7 00:00:38,450 --> 00:00:40,760 on the 8th of April. 8 00:00:41,610 --> 00:00:49,030 And again, the 8th of April, that's the British date format, if it was American, you'd say we're 9 00:00:49,030 --> 00:00:50,730 arriving on April 8th. 10 00:00:51,490 --> 00:00:53,830 Still both ways we use on it. 11 00:00:54,430 --> 00:00:58,900 So another example is I don't work on Fridays. 12 00:00:59,450 --> 00:01:00,580 Again, this is a date. 13 00:01:01,320 --> 00:01:03,400 Don't work on Fridays. 14 00:01:03,880 --> 00:01:06,850 So Friday is a day in April 8th. 15 00:01:07,000 --> 00:01:08,030 That is also a date. 16 00:01:08,050 --> 00:01:08,380 Right. 17 00:01:08,400 --> 00:01:10,150 So, again, these are very similar. 18 00:01:11,620 --> 00:01:19,180 Ellen is often grumpy on Monday mornings, again on and then the day. 19 00:01:20,340 --> 00:01:25,550 The last example, we usually hang out at our place on Thursday night. 20 00:01:26,200 --> 00:01:30,840 So even though we're talking about either Thursday night or Monday morning, right. 21 00:01:30,840 --> 00:01:32,040 It's a part of the day. 22 00:01:32,860 --> 00:01:34,650 This is a shorter period of time. 23 00:01:34,980 --> 00:01:37,050 And we're using this preposition on. 24 00:01:38,040 --> 00:01:45,540 And now, in contrast, when we have a longer period of time, like a month or a season or even a year. 25 00:01:46,890 --> 00:01:50,040 We're going to use in the preposition in. 26 00:01:51,680 --> 00:01:56,360 Kyle and Deborah are getting married in December. 27 00:01:57,090 --> 00:02:00,050 It's not on December, it's in December. 28 00:02:01,220 --> 00:02:07,110 Again, on is four days on Friday, on the 8th of April. 29 00:02:07,970 --> 00:02:09,470 You could say island. 30 00:02:09,620 --> 00:02:16,750 We are getting married on Friday, but Kyle and Debra are getting married in December. 31 00:02:18,880 --> 00:02:24,190 The next example, it gets unbearably hot here in summer. 32 00:02:25,290 --> 00:02:31,320 Again, it's not on summer, it's in summer is longer periods use in. 33 00:02:32,340 --> 00:02:37,920 Our next example, our uncle was born in nineteen seventy three. 34 00:02:39,030 --> 00:02:43,320 And the last example, the movie is set in the 80s.