Error Hunt: "am / is / are"

1. My sister (singlim) are happy (baxtli) today because she is excited (hayajonlangan) and her friends (do'stlari) is celebrating (nishonlamoq) with her.
2. There is two cats (mushuklar) on the roof (tom) and they is meowing (miyovlamoq) loudly (baland).
3. I am tired (charchagan) but my brother (akam/ukam) are full (to'la) of energy (energiya) and he is ready (tayyor) to play (o'ynamoq).
4. The books (kitoblar) on the table (stol) is new (yangi) and the pencil cases (qalamdonlar) are clean (toza).
5. She am a good (yaxshi) singer (qo'shiqchi) and her teacher (o'qituvchi) are proud (faxrlanadi) of her performance (chiqishi).
6. We is learning (o'rganmoq) about animals (hayvonlar) and the elephant (fil) are the biggest (eng katta) land animal.
7. The weather (ob-havo) am cold (sovuq) today so my friends (do'stlarim) are wearing (kiymoq) coats (palto) and hats (shlyapa).
8. This picture (rasm) are very colorful (rang-barang) and it is making (qilmoqda) me smile (tabassum qilmoq).
9. You is the answer (javob) to the riddle (topishmoq), but sometimes you are unsure (ishonchsiz) and you need help (yordam).
10. There am many stars (yulduzlar) in the sky (osmon) tonight and they is shining (yaltirmoq).
11. My dog (it) and cat (mushuk) is sleeping (uxlamoq) on the sofa (divan), and the fish (baliq) are swimming (suzmoq).
12. I are ready (tayyor) for school (maktab) because my uniform (forma) is clean (toza).