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Home » [Update] When to use For and Since in English | since and for – NATAVIGUIDES

[Update] When to use For and Since in English | since and for – NATAVIGUIDES

since and for: คุณกำลังดูกระทู้

For – Since

English Grammar Rules

The use of FOR

We use For when we measure the duration – when we say how long something lasts.

For + a period of time

To measure a period of time up to the present, we use the present perfect tense and not the present tense.

  • I have known her for a long time. (Correct)
    I know her for a long time. (Incorrect)
  • I have lived here for ten years. (Correct)
    I live here for ten years. (Incorrect)

The present tense with For refers to a period of time that extends into the future.

  • How long are you here for? (Until when)
  • How long have you been here for? (Since when)

In reality, we can use all verb tenses with For.

Uses of For Example sentence Verb Tense
They exercise for two hours every day. Present tense They are exercising for three hours today. Present continuous
He has lived in Moscow for a long time. Present perfect He has been living in Turin for three months. Present perfect continuous
I worked at the service station for five years. Past tense He will be in hospital for at least a week. Future tense

However, we don’t use For with expressions such as all day or all the time.

  • I was there all day. (Correct)
  • I was there for all day. (Incorrect)

The use of SINCE

Since gives the starting point of actions, events or states. It refers to when things began.

Since + a point in time (in the past), until now.

  • I’ve been waiting since 7 o’clock.
  • I have known him since January.

With since we use the present perfect tense or the past perfect tense.

  • I here since 5 o’clock and I am getting tired.
  • I since 5 o’clock and I was getting tired.

Since can also be used in the structure It has been + period of time + since.

  • It has been two months since I last saw her.
  • It has been three years since the last earthquake.

For vs. Since

Knowing when to use FOR and when to use SINCE is important. Therefore it is useful to look at a summary of the contrast between FOR and SINCE.

FOR to mention a specific period (or duration) of time.
SINCE to mention the starting point of a period of time
(continues to now).
I have been a doctor for fifteen years. (duration = 15 years)
I have been a doctor since 1992. (starting point = 1992)
She has been a mother for six months.
She has been pregnant since her first child was born.
My sister has lived in Frankfurt for nine months.
My sister has lived in Frankfurt since the beginning of March.

Both For and Since are most commonly used with the perfect tense – we don’t use these expressions in the present tense.

Correct Incorrect
I have learnt Russian for three years.
I learn Russian for three years.
They have taught geography since last year.
They teach geography since last year.
He has owned his dog since his cat died.
He owns his dog since his cat dies.

While we can use For in the simple past tense we can’t use Since
in the simple past tense. Since can only be used in the perfect tense.

Correct
Incorrect
She went to Japan for three years. She went to Japan since 2003.
I studied in New Zealand for one month. I studied in New Zealand since one month.
He walked his dog for four hours. He walked his cat since four hours.

It should be remembered that both For and Since have other meanings in English that are not associated with time.

  • This is for you.
  • Is this the train for London?
  • Since you asked, I’ll say yes.
  • Since he didn’t study he didn’t pass the exam.

Summary Chart

Next activities

Would you like to play a game to practice the difference between For and
Since? Then try this Game.

See our For vs. Since English Lesson as a part of our free course.

Download our free For vs Since Worksheet (in PDF).
You can check the answers to this worksheet here: Answers to the For vs Since Worksheet.

If you found this grammar guide about the difference between For and Since in English useful, let others know about it:

[NEW] Since | since and for – NATAVIGUIDES

We use as a preposition, a conjunction and an adverb to refer to a time, and as a conjunction to introduce a reason.

: time

We use to refer back to a previous point in time. We use as a preposition with a date, a time or a noun phrase:

( + date)

( + noun phrase)

We also use as a conjunction to introduce a subordinate clause:

( + clause)

( + clause)

( + clause)

and tenses

When introduces an action or event at a point of time in the past, we can use the past simple or present perfect after and the present perfect in the main clause:

We can use the past simple, present perfect or past perfect after with the expression + + time + :

( = )

( = )

( = )

( = )

( = )

is more common in American English than .

When introduces a state in the past that is still continuing in the present, we use a present perfect form of the verb after and a present perfect form of the verb in the main clause:

See also:

  • or ?

  • Present perfect continuous ()

  • Past perfect continuous ()

+

We can use + – form to refer to time when the subject of the verb is the same in the main clause and the subordinate clause:

(Since he left school, he has …)

(Since I moved …, I’ve learned …)

,

We can use or as an adverb of time when the time reference is understood from the context:

(since they had the argument)

(since 2006)

We use as a stronger form of or :

: reason

We use as a subordinating conjunction to introduce a subordinate clause. We use it to give a reason for something:

See also:

: typical errors

  • We don’t use with extended periods of time. We use :

Not: She was waiting since four hours.

  • We use , not , with a clause referring back to a point in time:

Not: I’ve been swimming from I was three years old.

  • We use , not , to introduce a reason:

Not: I think I should have my money back once I didn’t have …

  • We use , not , after ‘it’s a long time’ when we refer back to a point in time:

Not: It’s a long time ago your last letter.


Lấy gốc TA: thì hiện tại hoàn thành


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Cách phân biệt khi sử dụng SINCE và FOR trong tiếng Anh – Quiz Time – English Made Easy With Kim #4


Ôn lại/ Revision:
Thì hiện tại hoàn thành/hoàn thành tiếp diễn
Sử dụng \”Since\” or \”For\”
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شرح Since و For | الفرق بين المضارع التام والمضارع التام المستمر !


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Since و For من الحاجات اللي ساعات بتلغبط الناس والطلبه بالأخص . ايه الفرق بينهم وايه الفرق في الاستخدامات وامته أصلا بنستخدمهم ؟!
الصراحه الإجابه بسيطه جدا ويمكن إختصارها في جملتين :
Since و For معناهم [ منذ أو لمدة ]
واللي بيجي بعد Since هي بداية الفتره الزمنيه
واللي يجي بعد For هي الفتره الزمنيه نفسها
يعني مثلا : I have been studying since 10 A.M
معناها اني بذاكر منذ الساعه العاشره صباحا
و I have been studying for 2 hours.
معناها اني بذاكر منذ ساعتين
هتلاحظ ان اللي جه بعد Since هي بداية فترة المذاكره ( وقت محدد )
اما اللي جه بعد For هي الفتره نفسها (ساعتين)
الكلام عن Since و For هيودينا للكلام عن زمنين مهمين جدا وهما :
المضارع التام Present Perfect
المضارع التام المستمر Present Perfect Continuous
ان شاء الله شرح since و for بالاضافه للفرق بين الزمنين في الفيديو
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شرح Since و For | الفرق بين المضارع التام والمضارع التام المستمر !

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 \u0026 speaking practice: http://goo.gl/NYfWlm
Other lessons:
Present perfect: http://www.youtube.com/watch?v=vLIJ9GfpuFc
Idioms and phrases: http://www.youtube.com/watch?v=eU3XYlbTtVU
Business English expressions and conversation: http://www.youtube.com/watch?v=5cQv8pWsnEE
Playlists:
Grammar: http://www.youtube.com/playlist?list=PL6BDo90oiwpS4_AM1c0s0ozpROeE2A9ff
Listening practice: http://www.youtube.com/playlist?list=PL6BDo90oiwpRdmnAzmYwdc0Az0ZOG2XNA
Vocabulary: http://www.youtube.com/playlist?list=PL6BDo90oiwpTlYAYSitjwWn29BEdCBi9j

Andrew,
Crown Academy of English
http://www.crownacademyenglish.com
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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/PMOS41308

FOR and SINCE | English grammar class

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