Чем отличается допустим are you happy? от do you happy?

Тут не может быть do you happy? Так как do применяется с глаголом, тоесть в предложении должен быть глагол. Are you happy- правильно. Так что различие : то что 1- правильное а 2 -нет

1. My friend could come to my birthday party if  he wasn^t ill.2. I could write to my friend if  I  wasn^t  very busy.3. You could  play football if  you hadn^t hurt your leg.4. Daniel saw an interesting book at the bookshop,  he would  buy it if he had enough money.5. Ann left the party early because she did not feel well.6. Aidar likes tennis but he can't play tennis because be has injured his hand.7. Patty was unhappy because her dreams did not come true.8. I want to buy a new CD but I don't have pocket money.9. I want to stay out late but my parents don't let me.

1. do ... go: Present Simple (Indefinite), to go.
2. sleeps: Present Simple (Indefinite), to sleep; slept: Past Simple (Indefinite), to sleep.
3. did write: Past Simple (Indefinite), to write.
4. flows: Present Simple (Indefinite), to flow.
5. shall go: Future Simple (Indefinite), to go; will come: Future Simple (Indefinite), to come.
6. Look: Present Simple (Indefinite), to look; is snowing: Present Continuous (Progressive), to snow.
7. were doing: Past Continuous (progressive), to do; were having: Past Continuous (Progressive), to have.
8. don't come: Present Simple (Indefinite), to come; shall be writing: Future Continuous (Progressive), to write.
9. came: Past Simple (Indefinite), to come; were sitting: Past Continuous (Progressive), to sit; were watching: Past Continuous (Progressive), to watch.