استعمال at كحرف جر خاص بالزمن في اللغة الانجليزية preposition of time:
They finish school at 4 o'clock
The children usually have a story at bedtime
نستعمل at لتحديد وقت محدد في الزمن:
At one o'clock, half-past five, midnight
At lunch time, dinner time
At the end of the lesson
استعمال on كحرف جر خاص بالزمن:
I saw her on Monday
My birthday's on 4th September
نستعمل on لتحديد اليوم أو التاريخ:
On Tuesday, Thursday
On 1st April, 4th June
On the first day of spring
استعمال in كرحف جر خاص بالزمن:
I usually work in the mornings
The weather's very nice here in the summer
نستعمل in لتحدث عن فترة من الزمن:
In the morning, afternoon, evening
In April, May, June
In the summer, winter
In 1992
قواعد إضافية:
On Wednesday, in the afternoon, on Wednesday afternoon
In the morning, afternoon, evening, but at night
On Christmas Eve, Independence Day, Easter Sunday, but at Christmas, at New year
