Penggunaan Present Perfect Continuous Tense
Summary
TLDRIn this educational video, the presenter explains the present perfect continuous tense in English grammar. This tense is used to express activities that started in the past and continue to the present. Key differences with the present continuous are highlighted, alongside the use of time expressions like 'since' and 'for.' The video details sentence structures for positive, negative, interrogative, and negative interrogative forms. By providing clear examples and engaging explanations, viewers gain a thorough understanding of how to correctly use this tense in conversation.
Takeaways
- π The present perfect continuous tense describes activities that started in the past and are still ongoing.
- π It differs from the present perfect tense, which focuses on the completion of an action rather than its duration.
- π Common time expressions used with this tense include 'since' (indicating the start time) and 'for' (indicating the duration).
- π The basic structure for positive sentences is: Subject + have/has + been + verb-ing + time expression.
- π For negative sentences, the structure is: Subject + have/has + not + been + verb-ing + time expression.
- π Interrogative sentences follow the format: Have/Has + subject + been + verb-ing + time expression?
- π Negative interrogative sentences use: Have/Has + subject + not + been + verb-ing + time expression?
- π In nominal sentences, a form of 'to be' replaces the verb-ing, while still including time expressions.
- π Time expressions are crucial in this tense to clarify when an activity started or how long it has been ongoing.
- π Understanding the present perfect continuous tense is essential for effectively communicating ongoing activities in English.
Q & A
What is the present perfect continuous tense used to express?
-It expresses an activity that started in the past and is still ongoing in the present.
How does present perfect continuous differ from present continuous?
-While both indicate ongoing actions, present perfect continuous emphasizes that the activity started in the past and continues into the present.
What time expressions are commonly used with present perfect continuous?
-Common time expressions include 'since' and 'for'. 'Since' indicates when the activity started, while 'for' indicates the duration of the activity.
What is the structure of a positive sentence in present perfect continuous?
-The structure is: subject + have/has + been + verb-ing + time expression.
How do you form a negative sentence in present perfect continuous?
-To form a negative sentence, you use: subject + have/has + not + been + verb-ing + time expression.
What is the structure for forming questions in present perfect continuous?
-The structure is: have/has + subject + been + verb-ing + time expression?
Can you provide an example of a positive sentence using present perfect continuous?
-Sure! 'I have been working here since 2002.'
What does 'for' indicate in the context of present perfect continuous?
-'For' indicates the duration of time an activity has been ongoing.
What is the structure of a nominal sentence in present perfect continuous?
-The structure is: subject + have/has + been + adjective/adverb/noun + time expression.
How do you form a negative interrogative sentence in present perfect continuous?
-You form it by using: have/has + subject + not + been + verb-ing + time expression?
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