yeah, that's like Moroccan Arabic. I've heard it is utterly incomprehensible-- the French influence is really strong, and they don't pronounce a lot of letters... or whole syllables. The french influence is probably not the reason for this, but it sounds good, eh? (Actually, I can't tell whether it's a matter of not pronouncing letters, or the words themselves being different. Most likely a mixture. I have been told, though, that the further west you get in the Arab-speaking world, the more the words are "clipped" and the fewer long vowels there are.)
But yeah, when I said "they leave out so many letters" I meant from pronunciation-- ie, in French.
To Read is actually... qa-ra-a. I mean, it's hard to transliterate Arabic... but... it's a Q-ish consonant, then a R, then a glottal stop. All three take a kasra (unwritten "a" vowel.)
ka-ta-ba is actually "to write." So, you were close!
(saying "to write" is wrong, though, because they don't actually have infinitives. kataba is actually the 3rd person singular, past tense. Or at least... the only past tense we've learned so far. There may be more.)
I kind of alternate between loving Arabic and hating Arabic. Which is hard in terms of, you know, picking classes for next year.