Lección 2 - Diferencia entre SINCE y FOR - Uso de auxiliares HAVE y HAS | Curso inglés GRATIS

Summary

This video lesson focuses on explaining the difference between 'since' and 'for' in the present perfect tense. It delves into how these terms are used to indicate time, offering practical examples and exercises to reinforce the learning. The lesson emphasizes the importance of using 'have' and 'has' correctly in constructing sentences, along with key rules on auxiliary verbs and past participles. Through a series of questions and answers, viewers learn how to apply these concepts in everyday contexts, making the material accessible and easy to practice.

Takeaways

• 😀 The lesson focuses on the difference between 'since' and 'for' in the present perfect tense.
• 😀 The script explains how to use 'since' to refer to a specific point in time and 'for' to talk about a duration of time.
• 😀 It emphasizes the importance of understanding auxiliary verbs like 'have' and 'has' in forming correct present perfect sentences.
• 😀 The presenter encourages practicing with sentence completion exercises to reinforce learning.
• 😀 The lesson features a step-by-step approach to forming both affirmative and negative present perfect questions.
• 😀 It provides clear examples of how to use the expression 'how long' to ask about the duration of actions in the present perfect.
• 😀 The use of 'since' and 'for' is illustrated through practical examples like 'since March' and 'for many years'.
• 😀 The presenter stresses the importance of knowing irregular past participles, such as 'been', 'lived', and 'sung'.
• 😀 The video includes sentence-building exercises, encouraging viewers to complete and compare their answers.
• 😀 Throughout the lesson, the script highlights the importance of understanding context and time reference when choosing between 'since' and 'for'.

Q & A

What is the main topic of the class in the video?

The main topic of the class is the difference between 'since' and 'for' in the present perfect tense.

Why is it important to distinguish between 'since' and 'for'?

It is important because both 'since' and 'for' are commonly used in the present perfect tense, and understanding the difference helps in constructing accurate sentences.

How do you form a present perfect sentence with 'since' or 'for'?

'Since' refers to the starting point of an action, while 'for' refers to the duration. Both are used with the auxiliary verbs 'have' or 'has'.

What is the auxiliary verb used in present perfect sentences?

The auxiliary verbs used in the present perfect tense are 'have' and 'has'. The choice depends on the subject (e.g., 'I have', 'he/she/it has').

What is the difference between 'since' and 'for'?

'Since' refers to a specific point in time (e.g., 'since 2000'), while 'for' refers to a period of time (e.g., 'for two years').

Can you provide an example sentence using 'since'?

Sure! For example: 'She has lived here since 2015.' This means she started living here in 2015 and still lives here.

Can you provide an example sentence using 'for'?

Of course! For example: 'He has worked at this company for five years.' This indicates that the action of working has lasted for five years.

How do you form a question in the present perfect tense using 'since' or 'for'?

To form a question, start with the auxiliary verb 'have' or 'has', followed by the subject, and then 'since' or 'for' with the time expression. For example: 'How long have you lived here?'

What is the significance of the word 'yet' in a present perfect sentence?

'Yet' is used in negative sentences and questions to indicate that an action has not been completed up to the present time. For example: 'He hasn't finished his homework yet.'

How do you form a negative question in the present perfect tense?

In a negative question, you use 'hasn't' or 'haven't' followed by the subject and then 'since' or 'for'. For example: 'Has she not visited the museum yet?' or 'Haven't they lived in this city for a long time?'