is he/does he/isn't he/doesn't he这些疑问语气的用法

1.Is he...是对主系表结构的肯定提问.例如"Is he right?"是对"He is right."的提问.2.Isn't he...是对主系表结构的否定提问.例如"Isn't he going to school?"是对"He isn't going to school."的提问.3.Does he...是...