五、定冠詞不能用在表示稱呼語或某些頭銜的名詞前面(尤其作表語、賓補時)。例如：

　　1. Good morning, the sir!(×)

　　Good morning, sir! (√)

　　2. I need some help, the Mummy.(×)

　　I need some help, Mummy.(√)

　　六、定冠詞不能與名詞前已有作定語用的this, that, my, your, some, any等代詞連用。例如：

　　1. This the pen is mine. (×)

　　This pen is mine.(√)

　　2. I have the some money. (×)

　　I have some money. (√)

　　七、定冠詞不能用在表示科目名詞的前面。例如：

　　1. We will learn the Chinese, the history and the Maths this afternoon. (×)

　　We will learn Chinese, history and Maths this afternoon.(√)

　　2. The English is the most interesting of all the subjects.(×)

　　English is the most interesting of all the subjects.(√)

　　八、定冠詞不能用在三餐和球類運動名詞的前面。例如：

　　1. She goes to school after the breakfast every morning.(×)

　　She goes to school after breakfast every morning.(√)

　　2. We often play the football after school. (×)

　　We often play football after school. (√)