On-friday در مقابل In-friday: تفاوت چیست؟
in Friday.
Grammar Rule in 30 Seconds
Use 'on' for specific days and dates, but use 'in' for longer periods like months, years, and seasons.
- Use 'on' for days of the week: 'On Friday, I go out.'
- Use 'in' for months and years: 'In July, it is hot.'
- Never say 'in Friday'—it is always 'on Friday'!
مرور کلی
on Friday و in Friday یکی از مباحث پایهای و در عین حال بسیار کلیدی در یادگیری حروف اضافه زمان در انگلیسی برای سطح B1 است. برای ما فارسیزبانان که در زبان مادریمان از سیستم حروف اضافه (Prepositions) به شکلی کاملاً متفاوت استفاده میکنیم، درک این ظرافتها اهمیت زیادی دارد. در زبان فارسی، ما معمولاً برای اشاره به زمان از عباراتی مثل «روزِ جمعه» یا «در روز جمعه» استفاده میکنیم و مفهوم «در» (In) یا «روی» (On) به آن شکلی که در انگلیسی برای زمانبندی استفاده میشود، وجود ندارد.on استفاده میکند. اما وقتی از یک بازه زمانی طولانیتر مثل ماه یا سال صحبت میکنید، آن را مانند یک «ظرف» میبیند که وقایع در آن قرار میگیرند و از in استفاده میکند.in Friday از نظر یک انگلیسیزبان، مانند این است که شما بگویید «در داخلِ جمعه»؛ در حالی که جمعه یک نقطه زمانی است، نه یک محفظه. درک این تفاوت، به شما کمک میکند تا از اشتباهات رایج در محیطهای آکادمیک یا کاری جلوگیری کنید و طبیعتیتر صحبت کنید.in، on و at تمایز قائل میشود.on برای روزها و تاریخهای مشخص:on استفاده کنید.I have a meeting on Friday.(جلسهای در روز جمعه دارم.)The exam is on October 10th.(امتحان در ۱۰ اکتبر است.)
in برای بازههای طولانی:in استفاده میکنیم. این دقیقاً معادل «در» فارسی است.In summer(در تابستان)In 1998(در سال ۱۹۹۸)In September(در سپتامبر)
at برای لحظات دقیق:at برای ساعتهای دقیق یا نقاط بسیار مشخص در طول روز استفاده میشود.At 7:00 AM(ساعت ۷ صبح)At noon(هنگام ظهر)
In the morning |On Friday |At 5 o'clock |on بسیار ساده و ثابت است. شما همیشه on را قبل از روز یا تاریخ قرار میدهید.on + [روز هفته] | on Monday | در روز دوشنبه |on + [تاریخ خاص] | on May 5th | در پنجم ماه مه |on + [روز + بخشی از روز] | on Friday morning | در صبح جمعه |next (بعدی)، last (قبلی)، this (این) یا every (هر) استفاده کنید، دیگر نباید از on استفاده کنید. این یکی از خطاهای رایج است. مثلاً نمیگوییم on next Friday، بلکه میگوییم next Friday.on در موارد زیر استفاده کنید:- 1وقتی به یک روز خاص از هفته اشاره میکنید:
We meet on Sundays.(ما یکشنبهها همدیگر را میبینیم.) - 2وقتی به یک تاریخ تقویمی خاص اشاره دارید:
The festival is on July 15th. - 3وقتی به مناسبتهای خاصی که در یک روز مشخص هستند اشاره میکنید:
On Christmas Day(در روز کریسمس).
I will see you in Friday، شنونده بلافاصله متوجه میشود که شما در حال ترجمه ذهنی از فارسی به انگلیسی هستید، زیرا در فارسی ما برای همه اینها از «در» استفاده میکنیم.- 1تداخل از زبان مادری (L1 Interference): فارسیزبانان به دلیل اینکه در فارسی برای همه زمانها از حرف اضافه «در» استفاده میکنند، تمایل دارند
inرا به جایonبه کار ببرند. مثلاً میگویندIn Fridayچون در فارسی میگوییم «در جمعه». این اشتباه به دلیل عدم درک تفاوت «نقطه» و «ظرف» در زبان انگلیسی رخ میدهد. - 2استفاده غیرضروری از
on: بسیاری از زبانآموزان به اشتباه قبل از کلماتی مثلnextیاlastحرف اضافهonرا میآورند (مثلاًon next Friday). این غلط است چونnextخود نقش تعیینکننده زمان را ایفا میکند. - 3فراموش کردن حرف اضافه: گاهی زبانآموزان به دلیل ساختار متفاوت زبان فارسی که در آن حرف اضافه میتواند حذف شود، در انگلیسی هم آن را حذف میکنند (مثلاً
I see you Fridayبه جایI see you on Friday). در حالی که در انگلیسی استاندارد و رسمی، وجودonالزامی است.
In Friday | غلط | جمعه یک روز خاص (نقطه) است، نه یک ظرف |On Friday | صحیح | استفاده از on برای روزهای هفته |On next Friday | غلط | حذف on قبل از next الزامی است |Next Friday | صحیح | next جایگزین حرف اضافه میشود |- 1آیا میتوانم برای همه روزها از
inاستفاده کنم؟ خیر، هرگز.inفقط برای بازههای بزرگتر از یک روز (مثل ماه و سال) است. - 2اگر بگویم
in the morningولی روز را هم بخواهم بگویم چه؟ باید بگوییدon Friday morning. در اینجاonبرinمقدم است چون کل عبارت به یک روز خاص اشاره دارد. - 3آیا در انگلیسی محاوره میتوان
onرا حذف کرد؟ بله، در مکالمات بسیار دوستانه و غیررسمی، برخی انگلیسیزبانانonرا حذف میکنند (مثلاًSee you Friday)، اما در محیطهای آکادمیک و اداری، حتماً باید ازonاستفاده کنید.
Preposition Selection Guide
| Preposition | Time Unit | Examples |
|---|---|---|
|
On
|
Days of the week
|
On Friday, On Monday
|
|
On
|
Specific Dates
|
On April 1st, On the 20th
|
|
On
|
Holidays with 'Day'
|
On Christmas Day, On New Year's Day
|
|
In
|
Months
|
In January, In August
|
|
In
|
Years
|
In 1999, In 2024
|
|
In
|
Seasons
|
In summer, In winter
|
|
In
|
Long Periods
|
In the 80s, In the Ice Age
|
|
In
|
Parts of Day
|
In the morning, In the evening
|
Common Abbreviations in Writing
| Full Form | Abbreviation | Context |
|---|---|---|
|
On Friday
|
On Fri.
|
Calendars/Notes
|
|
In January
|
In Jan.
|
Schedules
|
|
On Monday morning
|
On Mon. am
|
Business notes
|
Meanings
The distinction between using 'on' for specific 24-hour periods (days/dates) and 'in' for larger, less specific blocks of time (months, years, centuries).
Specific Days
Using 'on' to denote a specific day of the week or a calendar date.
“See you on Monday.”
“The party is on May 12th.”
Enclosed Time Periods
Using 'in' for months, years, seasons, and long historical periods.
“I was born in 1995.”
“It rains a lot in spring.”
Parts of the Day
Using 'in' for general parts of the day, unless the day name is specified.
“In the morning”
“In the afternoon”
Reference Table
| Form | Structure | Example |
|---|---|---|
|
Affirmative (Day)
|
Subject + Verb + on + Day
|
I leave on Friday.
|
|
Affirmative (Month)
|
Subject + Verb + in + Month
|
I leave in June.
|
|
Negative (Day)
|
Subject + do not + Verb + on + Day
|
I don't work on Sundays.
|
|
Question (Day)
|
Do + Subject + Verb + on + Day?
|
Do you study on Saturdays?
|
|
Question (Year)
|
Was + Subject + in + Year?
|
Was he born in 1990?
|
|
Specific Date
|
on + Month + Day
|
It's on March 5th.
|
|
Day Part
|
on + Day + Part
|
See you on Monday night.
|
|
General Part
|
in + the + Part
|
I sleep in the afternoon.
|
طیف رسمیت
The meeting is scheduled to commence on Friday. (social/work)
I'll see you on Friday. (social/work)
See ya on Friday! (social/work)
Catch you Fri! (social/work)
The Time Preposition Map
ON (Days)
- Friday Friday
- My Birthday My Birthday
IN (Periods)
- July July
- 2025 2025
On vs In: The Scale of Time
Which Preposition Should I Use?
Is it a specific day?
Is it a month or year?
Preposition Categories
Days
- • Monday
- • Friday
- • Christmas Day
Months/Years
- • January
- • 2024
- • The future
مثالها بر اساس سطح
I play football on Friday.
My birthday is in May.
We go to school on Monday.
It is cold in winter.
See you on Saturday!
The party is on July 4th.
I drink coffee in the morning.
She was born in 2010.
We don't work on Sundays.
The flowers bloom in spring.
I'll meet you on Friday morning.
The company was founded in the 19th century.
Are you going away on the weekend?
The results will be published in October.
I have a doctor's appointment on Tuesday.
The project must be completed in three weeks.
On that particular Friday, everything went wrong.
In the coming years, technology will change.
He arrived exactly on time for the interview.
The treaty was signed on the 15th of August.
In the heat of the summer, the city is empty.
On the day of the exam, she felt surprisingly calm.
The shift in policy occurred in the mid-1990s.
I'll be there on the Friday following the holiday.
In times of crisis, people come together.
On the Friday last, the council reached a verdict.
The nuances of the law were established in the Victorian era.
Whether we meet on Friday or in the following week is irrelevant.
In the fullness of time, all will be revealed.
The gala is held annually on the first Friday in June.
بهراحتی اشتباه گرفته میشود
Learners use them interchangeably, but they mean different things.
Learners don't know when to use 'at' or 'on' for Christmas or Easter.
Learners try to use prepositions with 'this Friday'.
اشتباهات رایج
I see you in Friday.
I see you on Friday.
On July, it is hot.
In July, it is hot.
I go at Monday.
I go on Monday.
In 5th May.
On 5th May.
In the weekend.
On the weekend.
On the morning.
In the morning.
I was born on 1990.
I was born in 1990.
In Friday morning.
On Friday morning.
On the 21st century.
In the 21st century.
I'll be there in time.
I'll be there on time.
On the future.
In the future.
In the day of the wedding.
On the day of the wedding.
الگوهای جملهسازی
I have ___ on ___.
It is usually ___ in ___.
I was born on ___ in ___.
On ___ mornings, I like to ___.
Real World Usage
See you on Friday!
I can start on Monday.
Departure on June 12th.
Born in the 90s.
Rain expected on Tuesday.
The war ended in 1945.
Meeting in the afternoon.
The Calendar Rule
No Prepositions!
Day Wins
Weekend Variation
Smart Tips
Always use 'on'. The number makes it a specific day.
If you aren't sure, use 'on'. It is understood globally.
Delete the preposition entirely.
Use 'in' because a decade is a 10-year container.
تلفظ
Weak 'on'
In fast speech, 'on' is often unstressed and sounds like /ən/.
Linking 'in'
When 'in' is followed by 'the', they often blend together.
Time Emphasis
I'll see you ON Friday (not Thursday).
Stressing the preposition to clarify the day.
حفظ کنید
روش یادسپاری
ON for a day, IN for a stay (longer periods).
تداعی تصویری
Imagine 'ON' as a person standing on a single calendar square. Imagine 'IN' as a person sitting inside a large box labeled 'MONTH'.
Rhyme
On a day, you're on your way; In a month, you're in the bunch.
Story
Friday was a busy man. He stood ON his balcony every Friday. But when the month of July came, he went INside his house for the whole month to stay cool.
شبکه واژگان
چالش
Write down three things you do 'on' specific days this week and three things you want to do 'in' the next month.
نکات فرهنگی
Americans say 'on the weekend'. British people often say 'at the weekend'. Both are correct but 'on' is safer for learners.
Being 'on time' is a major cultural value in the US, Germany, and the UK. Being 'in time' is often not enough for a meeting.
Hashtags like #FlashbackFriday or #MondayMotivation reinforce the use of 'on' for days.
The preposition 'on' comes from Old English 'on/an', used for position. 'In' comes from Old English 'in', used for containment.
شروعکنندههای مکالمه
What do you usually do on Fridays?
What is your favorite month to travel in?
Were you born in the 80s, 90s, or 2000s?
If you could change one thing that happened on your last birthday, what would it be?
موضوعات نگارش
اشتباهات رایج
Test Yourself
I have a big exam ___ Friday.
My sister was born ___ 1998.
Find and fix the mistake:
I usually go to the gym in Saturday mornings.
Match each item on the left with its pair on the right:
The party is in June. (June 15th)
We are going to Italy ___ summer.
I'll be there ___ time, don't worry!
The meeting is ___ the morning.
Score: /8
تمرینهای عملی
8 exercisesI have a big exam ___ Friday.
My sister was born ___ 1998.
Find and fix the mistake:
I usually go to the gym in Saturday mornings.
1. July, 2. Monday, 3. 5:00 PM
The party is in June. (June 15th)
We are going to Italy ___ summer.
I'll be there ___ time, don't worry!
The meeting is ___ the morning.
Score: /8
Practice Bank
11 exercisesHer birthday party is ___ the 3rd of May.
I started my new job ___ Monday.
We are having a special dinner in Christmas Day.
Choose the correct sentence:
Arrange these words into a sentence:
Translate into English: 'La tienda cierra los domingos.'
Match the prepositions with the right time categories:
Do you have any plans in the weekend?
I'll see you ___ Tuesday.
Arrange these words into a sentence:
Translate into English: 'Nos conocimos en un viernes por la noche.'
Score: /11
سوالات متداول (8)
No, 'in Friday' is always incorrect. You must say 'on Friday'.
The specific day (Friday) is more important than the part of the day (morning), so 'on' takes over.
Both are correct. 'On the weekend' is American, and 'at the weekend' is British.
No. Words like 'next', 'last', and 'this' remove the need for 'on' or 'in'.
'On time' means you are not late. 'In time' means you have enough time to do something else.
Yes, unless you include a specific day number (e.g., 'on June 5th').
Use 'in', for example, 'in the 20th century'.
No, you must say 'in July'. Only use 'on' if you add a day like 'on July 1st'.
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
en
English requires 'on' for days.
le / en
English uses 'on' where French uses 'le'.
am / im
The logic is almost identical to English.
ni (に)
English forces a choice between 'on' and 'in'.
fi (في)
English 'on' for days is a unique requirement.
zài (在)
English prepositions are mandatory and varied.
Learning Path
Prerequisites
ویدیوهای مرتبط
Related Grammar Rules
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