Tenses Questions Long
The present perfect continuous tense is used to describe an action that started in the past, is still ongoing in the present, and is expected to continue in the future. When using this tense with 'for' and 'since', there are specific rules to follow.
1. 'For': When using 'for' with the present perfect continuous tense, it is used to indicate the duration of time that the action has been happening. 'For' is followed by a specific length of time, such as hours, days, weeks, months, or years.
Example:
- I have been studying for three hours. (The action of studying started in the past and has been ongoing for three hours.)
2. 'Since': When using 'since' with the present perfect continuous tense, it is used to indicate the starting point of the action. 'Since' is followed by a specific point in time, such as a particular date, time, or event.
Example:
- She has been working since morning. (The action of working started in the morning and is still ongoing.)
It is important to note that when using 'for', the emphasis is on the duration of time, while when using 'since', the emphasis is on the starting point of the action.
Additionally, it is common to use the present perfect continuous tense with 'for' and 'since' when talking about actions that have a direct impact on the present or when discussing ongoing situations.
Example:
- They have been living in this city for five years. (The action of living in the city started five years ago and is still ongoing, which has a direct impact on the present.)
- He has been playing the guitar since he was a child. (The action of playing the guitar started in his childhood and is still ongoing, indicating an ongoing situation.)
In summary, when using the present perfect continuous tense with 'for' and 'since', 'for' is used to indicate the duration of time, while 'since' is used to indicate the starting point of the action. These rules help provide clarity and accuracy when using this tense in English grammar.