"동물은 물건이 아닙니다."
Translation:An animal is not a thing.
is the object of the adjective 이다 in a affirmative sentence always written as one word with 이다? and the object of the verb 아니다 in a negative sentence has the "object" particle 이/가 and is not attached to 아니다?
음식 and 입니다 are written together.
동물은 물건이 아닙니다.
물건 has 이 attached to it and formes two words with 아닙니다.
Neisann, maybe your transliteration is not in the spirit of Duolingo, but I find it extremely helpful - having worked through the previous lessons I am still not at all at ease with the Korean characters; a spelling out in western characters helps me to key into the Korean with greater understanding; maybe Duo should revise its policy on not giving transliteration.
Don't worry, everybody needs to start somewhere - if you think you can't read/listen/speak that fast yet, you just need to practise and overtime you will get better. Korean might be a totally unfamiliar type of language for most of the learners, so it's okay to not be fluent in reading or speaking at the beginning :)
For me, it helped a lot when I tried to read Korean words by syllables, rather than character-by-character. It's a lot faster than way, btw there are many particles/word endings in Korean that are usually the whole syllable (or part of a syllable), like -이, -은, -는, -(스)ㅂ니다 etc., so when you recognize some of these in a sentence, it might help you read faster. The same for listening - sometimes you don't even have to know the exact meaning of the word to recognize a word ending. But that's just my personal tip.
If you want to start practising the listening/speaking right now, you can check https://www.duolingo.com/skill/ko/Alphabet-2/tips-and-notes a.k.a. 'Tips and Notes' on the lesson 'Alphabet 2', which might help you understand some of the pronunciation rules :)
Hope this helps!