الفرق بينsince /for

الفــــرق بــــين

¶ Since نقطه بداية الحدث ¶ for مده الحدث - الفترة

~ إذا جاء مع since فعل واحد نضعه في زمن المضارع التام.

w She has learned English since 1995.

~إذا جاء مع since فعلان نضع قبلها زمن المضارع التام وبعدها زمن الماضي البسيط.

+ مضارع تام since + ماضي بسيط

w She has been in bed since she arrived home.

w He has been studying since he returned from school.

M لاحظ الجدول الأتي:

Since	For
Since 7 o'clock	For 2 hours
Since 2000	For 5 years
Since yesterday	For a day - one day
Since last night	For a night - the last night
Since April	For 2 months
Since Friday	For five days
Since then	For ages , along time
Since spring	For a season
Since his arrival	For years – a while

M ملاحظات :

1- إذا طلب استخدام since بدلا من when نستخدم زمن المضارع التام منفي :

w I last saw her when she was a child. (Since)

w I haven't seen her since she was a child.

2- إذا طلب استخدام ago بدلا من for نستخدم الفعل began to قبل المصدر من الفعل الأصلي :

w She has played tennis for five years.

w She began to play tennis five years ago.

3- إذا طلب استخدام just بدلا من a moment ago نستخدم المضارع التام :

w She left home a moment ago.

MR . Khairy

w She has just left home.

4- إذا طلب استخدام since بدلا من for نتبع الطريقة الاتيه :

w He has worked as a teacher for 5 years.

w He has worked as a teacher since 2000.

w Its 5 years since he worked as a teacher.

5- استخدام for بدلا من ago

w The last time I met her was 2 months ago

w I haven't seen her for 2 months.