1 00:00:00,880 --> 00:00:05,620 The next group of modals in the negative start with may not. 2 00:00:06,000 --> 00:00:07,519 You may not do something. 3 00:00:08,320 --> 00:00:13,359 Either you are not allowed to do it or it's a negative possibility. 4 00:00:14,320 --> 00:00:17,059 We don't think there's very much chance of it happening. 5 00:00:17,179 --> 00:00:18,140 Maybe 50-50. 6 00:00:19,199 --> 00:00:24,719 So, for example, your mum tells you you may not go to the party on Saturday. 7 00:00:25,219 --> 00:00:26,179 You're not allowed to go. 8 00:00:27,019 --> 00:00:29,480 Or it may not rain tomorrow. 9 00:00:29,480 --> 00:00:38,200 You don't know. It may. It may not. Might not. Might not, like may not, is negative 10 00:00:38,200 --> 00:00:45,380 possibility. I might not finish my book today. I've still got a lot of pages to read. I might 11 00:00:45,380 --> 00:00:56,219 not finish it. Can't or cannot. Again, it's not allowed to do something or a negative 12 00:00:56,219 --> 00:01:05,040 ability for example you can't watch this program you're not allowed to or I can't 13 00:01:05,040 --> 00:01:12,060 speak Russian I can't speak Russian I don't know how to speak Russian and then 14 00:01:12,060 --> 00:01:21,019 couldn't could not that is for negative ability in the past for example I 15 00:01:21,019 --> 00:01:24,500 I couldn't speak English when I was a baby. 16 00:01:24,719 --> 00:01:25,920 I didn't know how to. 17 00:01:26,340 --> 00:01:29,680 I couldn't speak English when I was a baby.