MSA Numbers 11 - 19

It's time to continue with the number series and in this post, I will deal with the MSA numbers 11 - 19. Keep in mind that somewhere in the world, there is a parent or a teacher right now enforcing these rules with a real or metaphoric shibshib. First, here are the actual numbers for you to learn before we get any further than this:

١١ احد عَشَرَ 11
١٢ إثناَ عَشَرَ 12
١٣ ثَلاثةَ عَشَرَ 13
١٤ أرْبَعةَ عَشَرَ 14
١٥ خَمْسةَ عَشَرَ 15
١٦ سِتّةَ عَشَرَ 16
١٧ سَبعةَ عَشَرَ 17
١٨ ثَمانيةَ عَشَر 18
١٩ تِسعةَ عَشَرَ 19

As we have seen in the previous post, numbers dealing with 1 or 2 have special rules. So in the case of numbers 11 and 12, there is proper gender and number agreement. There are no conjunctions, you will not be changing them according to the rules of the three cases, and all numbers will end in the /a/ vocal at the end. The noun or the thing being counted will be in the indefinite accusative singular. In this case, do not forget about the "protective alif" that you need with the accusative unless your nouns end with a taa marboota ة. In that case, you will simply add the tanween ًً  /an/. For more information on the uses of the accusative, please check here

So what does this look like in practice: 

11 female workers إحدى عشرةَ عامِلةً 
11 male workers أحدَ عشرَ عاملاً 
12 female workers اثنتا عشرةَ عاملةً 
12 male workers اثنا عشرَ عاملاً 
15 female students خمسَ عشرةَ طالبةً 
15 male students خمسةَ عشرَ طالباً 
18  female professors ثمانى عشرةَ أستازةً 
18 male professors ثمانيةَ عشرَ أستاذاً 

I'll leave it at this for now. P.S. If you are wondering about the source of this information, I am mostly writing these from memory and reviewing my old class notes which I meticulously took and kept, so I wouldn't have the slightest idea whether my professor used another book or whether this was her creation. Happy learning. Much love to every corner of the world.