29:29'must have', 'might have', 'should have' & 'can't have' to talk about the past: Live English Class
BBC Learning English
MIT RES.16-9960 The Engineering Student’s Guide to Effective Technical Communication, Spring 2026 Instructor: MIT AeroAstro Communication Lab View the complete course: https:// ocw.mit.edu/courses/res-16-9960-the-engineering-students-guide-to-effective-technical-communication-spring-2026/ YouTube Playlist: https://www.youtube.com/playlist?list=PLbunUf3SkvCc Research is messy. This lesson gives you practical habits for keeping a project on track: scoping a clear question, breaking it into small trackable units, and adapting your plan as you learn that change is information, not failure. License: Creative Commons BY-NC-SA More information at https://ocw.mit.edu/terms More courses at https://ocw.mit.edu Support OCW at http://ow.ly/a1If50zVRlQ We encourage constructive comments and discussion on OCW’s YouTube and other social media channels. Personal attacks, hate speech, trolling, and inappropriate comments are not allowed and may be removed. More details at https://ocw.mit.edu/comments. Speakers: Nick Rober
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29:29BBC Learning English
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