FOR and SINCE | English grammar class

In this English grammar class, I give you the explanation about how to use FOR and SINCE. En esta lección de inglés, Te doy la explicación de cómo usar FOR y SINCE. We use FOR to describe a period of time (duration) from the past present or future. We can use it with any verb tense. We use SINCE with a point in time from the past. We use it mainly with the perfect tenses, in particular with the present perfect and present perfect continuous. "since" gives the starting point. It defines when things began or started. Examples of points in time are: yesterday, last week, 5 days ago, 2010 and many more. We often use these 2 words when answering a question like "How long have you been doing something?" In this English lesson with subtitles, I also show you some common mistakes and I correct them. At the end of the video, there is a quiz to test your understanding. Private English lessons & speaking practice: http://goo.gl/NYfWlm Other lessons: Present perfect:    • Present Perfect tense | Part 1 - Form   Idioms and phrases:    • IDIOMS and PHRASES in English | The body   Business English expressions and conversation:    • Business English expressions | Conversation   Playlists: Grammar:    • learn English grammar   Listening practice:    • English listening practice   Vocabulary:    • learn English vocabulary   Andrew, Crown Academy of English http://www.crownacademyenglish.com   / crown_english      / crownacademyenglish   Photo credits by FreeDigitalPhotos.net: “Businessman Thinking” by imagerymajestic “Front View Of Boy Sitting On Books” by imagerymajestic “Calendar” by David Castillo Dominici by FreeImages.com: "London view" by freeimages.com/photographer/PMOS-41308