رُبَّ perhaps in Arabic
رُبَّ is how you say “perhaps” in Arabic.
Arabic
English
The audio uses AI voices.
Example sentence
فرب لذة عاجلة تكون سببًا لعذاب آجل،
For, a momentary pleasure might cause future torment,
فَرُبَّ for, perhaps
The fa- opens the reasoning, and the particle joined to it means 'many a', a word that introduces something as occurring often. It forces the following noun into the possessive case, even though that noun functions as the subject of the thought.
The English is machine-translated.

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More example sentences
ورب منفعة قليلة تجر إلى مضرة كثيرة
and a small benefit might lead to great harm.
وَرُبَّ and perhaps
The wa- parallels this with the previous statement, and the 'many a' particle again presents something as common while forcing the noun after it into the possessive case despite its subject role.
رُبَّ صَائِمٍ لَيْسَ لَهُ مِنْ صَوْمِهِ إِلَّا الْجُوعُ وَالْعَطَشُ، وَرُبَّ قَائِمٍ لَيْسَ لَهُ مِنْ قِيَامِهِ إِلَّا السَّهَرُ
'Perhaps a fasting person gains nothing from his fast except hunger and thirst, and perhaps one who prays gains nothing from his prayer except sleeplessness.'
رُبَّ perhaps
A particle, 'many a / perhaps', that opens a statement about a possibly common case and pulls the following indefinite noun into a set ending. Despite the gloss it leans toward 'how many a...', framing a frequent type rather than a single instance.
رُبَّ صَائِمٍ لَيْسَ لَهُ مِنْ صَوْمِهِ إِلَّا الْجُوعُ وَالْعَطَشُ، وَرُبَّ قَائِمٍ لَيْسَ لَهُ مِنْ قِيَامِهِ إِلَّا السَّهَرُ
'Perhaps a fasting person gains nothing from his fast except hunger and thirst, and perhaps one who prays gains nothing from his prayer except sleeplessness.'
وَرُبَّ and perhaps
The connector 'and' joined to the particle 'many a / perhaps', opening a parallel statement about another common case. Like its earlier twin it frames a representative type and governs the indefinite noun after it.
كُلُّ بَرْقٍ رُبَّ بَرْقٍ فِيهِ صَوَاعِقُ حَيْنِ
Every flash of lightning may at times contain thunderbolts.
رُبَّ may
A classical particle expressing 'perhaps/sometimes a...', which governs the noun after it and forces it into a particular ending. It tempers the claim from 'every' to 'many a', granting that not all but some such flashes hide a deadly bolt. So it qualifies the sweep of the line.