Understanding the Difference Between “Since” and “For”
Understanding the Difference Between “Since” and “For”
The English language, rich and diverse, often poses challenges for learners and even native speakers.
Among the common sources of confusion are the words “since” and “for.”
Both words are used to indicate time, but they do so in different ways.
This lesson will delve into the meanings and uses of “since” and “for,” providing clear examples and tips to help you master their correct usage.
Introduction to “Since” and “For”
Since
The word “since” is used to refer to a specific point in time. It tells us when something started.
For example, if you say, “I have been living here since 2010,” you are specifying the exact year when you started living in that place.
“Since” helps in pinpointing the beginning of an action or event.
For
On the other hand, “for” is used to express the duration of time. It answers the question “How long?”
For example, if you say, “I have been living here for ten years,” you are indicating the length of time you have been living in that place.
“For” helps in describing the period over which an action or event continues.
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Detailed Explanation and Examples
Using “Since”
When using “since,” you are referring to a specific starting point. This point can be a date, a time, or even a particular event.
Here are some examples to illustrate:
Specific Date or Year:
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- “She has been studying French since 2015.”
- “We have been friends since childhood.”
Specific Time:
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- “I have been awake since 6 a.m.”
- “He has been working here since last Monday.”
Specific Event:
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- “They have been happy since their wedding day.”
- “I have known her since we were in college.”
Using “For”
When using “for,” you are talking about the length of time an action or event continues. Here are some examples to clarify:
Period in Hours, Days, or Weeks:
Period in Months or Years:
General Periods:
Key Differences Between “Since” and “For”
Point in Time vs. Duration
The primary difference between “since” and “for” is how they relate to time:
- Since: Refers to the specific point in time when an action started.
- For: Refers to the duration or length of time an action has continued.
Present Perfect Tense
Both “since” and “for” are commonly used with the present perfect tense.
The present perfect tense is formed using “have” or “has” followed by the past participle of the verb.
Here are some examples:
In both cases, the present perfect tense indicates an action that began in the past and continues into the present.
Usage in Sentences
To understand the difference more clearly, let’s look at some pairs of sentences using both “since” and “for”:
- Since: “She has been a teacher since 2012.” For: “She has been a teacher for twelve years.”
- Since: “They have been married since June.” For: “They have been married for a month.”
- Since: “He has been learning Spanish since last year.” For: “He has been learning Spanish for a year.”
Tips for Correct Usage
Remember the Starting Point
When you need to specify the starting point of an action or event, use “since.” Think of “since” as marking the beginning of something.
Think About the Duration
When you want to express the duration or how long something has been happening, use “for.” Consider “for” as indicating the length of time.
Common Mistakes to Avoid
Mixing Up Point in Time and Duration:
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Incorrect: “I have been here since three hours.”- Correct: “I have been here for three hours.”
Using “For” with Specific Events:
Using “Since” with Duration:
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Incorrect: “He has been working here since ten months.”- Correct: “He has been working here for ten months.”
Practice Exercises
To solidify your understanding, here are some exercises. Try to fill in the blanks with the correct word, “since” or “for.”
- I have been waiting ______ two hours.
- They have been friends ______ childhood.
- She has been studying medicine ______ 2018.
- We have lived here ______ a long time.
- He has been at the company ______ five years.
- I have known him ______ last year.
Answers
Conclusion
Understanding the difference between “since” and “for” is crucial for mastering English.
“Since” points to the specific start of an action, while “for” indicates the duration of the action.
By remembering these key distinctions and practicing regularly, you can use these words accurately and confidently.
Keep practicing, and soon the usage of “since” and “for” will become second nature to you.
Happy learning!
