I understood what do mean . I just want to help you in Arabic , if you wish ? Information = معلومة or معلومات Science = علم

Hi Louai, what I was trying to say about al-'ilm was: - al-'ilm is a masculine noun that can mean 'information', is that right? - that like the English word 'information' it is conjugated as a singular - is كان العلم incorrect? Anyway, if I was able to help you just using English explanation, then don't let my Arabic mistakes confuse you!

Thank you for your answer , it is really helpful . But I would like to say that tha Arabic example is not accurate because كانت" للمؤنث و ليس لها علاقة بالجمع او المفرد " انت تقصد لا يجب كتابة كانوا العلم

http://www.englishclub.com/grammar/nouns-un-countable_2.htm It's not really a plural word, it's singular, referring to an amount of uncountable 'stuff.'. You say 'the information is...' not 'the information are...' I think it's the same as العلم (al-'ilm), you say كان العلم not كانت العلم ?

thank you Ross اشكرك يا روس علي المعلومة