Father always tells us not to eat French fries so often. 請問可以寫成Father always tells us don't eat French fries so often. 嗎?

Father always tells us not to eat French fries so often. (X)
=> My dad always told us not to have french fries so often. (O)

Father always tells us don't eat French fries so often.(XXXXX too many errors)
=> My dad always told us "Don't you have french fries so often". (O)

○例1. Father always tells us (that) not to eat French fries so often.
○例2. Father always tells us (that) don't eat French fries so often.
# 解說：
1. 這兩例句係兄弟姊妹之間的會話，主詞是"father"。
2. "always"係頻率副詞，表示父親的這句話是經常性的，而動詞(tells)要使用第三人稱單數現在式。(always辭典例) He always is /íz/ late.
3. "to eat French fries" 與 "to have French fries"的用語並無差別，都是「吃炸薯條」。
4. 兩例句都省略了"that"(關係代名詞)。
5. 例句2的"do"係強調語氣。

不知所謂, 這本來是很基本的語法.

Imperative mood (command, order or request) :
Don't eat french fries so often! (subject pronoun "you" omitted)

A direct speech your father always says to you:
My father always says, "don't eat french fries so often."

When converting to an indirect speech involving imperative mood, we use to-infinitive positive sentence or not to-infinitive for negative sentence. (that-clause is only used for indicative mood only!!!!)

My father always tells us/me not to eat french fries so often. (us or me must be added to indicate the omitted you)


positive sentence: My father always tells me to do exercise regularly.

子戶之星所答是對的，動詞前如有時間副詞如always , often等不加s，動詞加 s是在現在式的時態，但always 是很多次以來的經驗，基本上與在講現在式的事實有別，不是講現在的情形，故不加s.

Amendment: My father always tells that French fries being junk food, don't eat too often. Yip