There is no difference actually. "چون" can be considered "چونکه" with an omitted "که". It means "because" and relates two sentences and implies that the latter is the cause of the first. A happens because B happens. "کودک غذا نمیخورد چون/چونکه سیر است." the usage is the same as "زیرا که، برای اینکه،زیرا،به خاطر اینکه، به دلیل اینکه". If you are willing to use a noun clause, you can use "به خاطر". A happens because of B(noun clause). "به خاطر ب،الف اتفاق افتاده است." "به خاطر سرما، آب یخ زده است." "به خاطر گرما، تشنه ام." PS: "چون" has another meaning that you will face in Persian literature and implies the similarity.

I don't use one but I searched and found one. it is available on an Iranian application store and I am not sure if you can access it. However, it doesn't hurt to try. here is the link: https://cafebazaar.ir/app/ir.parser.tts?l=en

Hello, It will be like this: "بعد از گرفتن نامه ی پذیرشم از دانشگاه،سریع به مامان و بابام زنگ زدم." another sentence you can use is "نامه پدیرشم که اومد، سریع زنگ زدم به مامان و بابام.". it is not an exact translation of your sentence but it seems more natural to me.

no, I don't make a conscious decision about this. notice that: 1 "فهمیدن" and "فکر کردن" have different meanings however their corresponding words in English ("to understand" and "to think") can be synonyms. 2 some verbs are both transitive and intransitive like "understand" in English. 3 in the sentence "مَن اصلا فارسی صُحبَت نِمی کُنَم' I think there is a preposition "به" before the "فارسی" that have been omitted in spoken language. a good way that may help you in this regard is to remember verbs like this: چیزی را فهمیدن با کسی صحبت کردن به زبانی صحبت کردن به چیزی فکر کردن actually this is the way that we also use to remember the preposition of some low usage verbs in school. the below link may help you as it is explaining the sentence components of the English language in Farsi. http://englishnice.com/%D8%A7%D8%AC%D8%B2%D8%A7%DB%8C-%D8%AC%D9%85%D9%84%D9%87-%D8%AF%D8%B1-%D8%A7%D9%86%DA%AF%D9%84%DB%8C%D8%B3%DB%8C/ Best luck with your learning.

Hello, as a general rule for "Ezafe" we have: first word + "e"+ second word first word ended in a vowel + "ye"+ second word