ظروف الزمان والمكان - ظروف التردد المنخفض

not at any point in time

أبداً

on any occasion

الى الآن

in a manner that almost does not occur or happen

شبه مستحيل

for one single time

مرة واحدة

for a single instance

مره واحده

for two instances

مرتين

on a very infrequent basis

نادرًا

on a very uncommon basis

نادرًا

on very rare occasions

نادرا

in an infrequent and unpredictable manner

بشكل متقطع

not on regular occasions

بشكل غير عادي

not on a regular basis

أحياناً

on irregular but not rare occasions

أحيانا

on occasions that are not regular or frequent

نادرًا

at moments that are not constant or regular

أحيانا

at infrequent intervals

في بعض الأحيان

at irregular intervals

دوريا