Below are just 2 example sentences for the general format '[phrase]地给[noun][verb][phrase]'.
This type of sentence is very common in Chinese. I would like to know if, generally speaking, it is acceptable in Chinese to replace '给' with '替' or '为'. If you are Chinese, would you find that acceptable in most, if not all, cases?
No. The words have different meanings.
Let's look at your first sentence: 他十分坦率地[给]我讲了他的故事 : He openly told me his story.
If we were to replace 给 with 替: 他十分坦率地[替]我讲了他的故事: He openly told his story for me (implying that I was supposed to be the one telling the story).
If we were to replace 给 with 为: 他十分坦率地[为]我讲了他的故事: He openly told his story to me for my sake.
In general I'm not too sure how you got the idea that they are interchangeable.
Grammar only:
In the case， "他十分坦率地给我讲了他的故事". We can trim it, then we have "他给我讲故事". You see it ends with "讲故事" (vt+noun). You can also change the order: "他讲故事给我" to make it "vt+noun to someone".
他很不情愿地给了我帮助 can be trimmed as "他给我帮助". You see it ends with "帮助" (noun). It is the object of 给 and 给 is vt.
In case 1, if you replace 给 with 替 or 为, then the grammar is OK but the meaning may be changed. Using 为 is OK because you change "to someone" to "for someone". But if you use 替 here, the meaning is changed to "instead of someone".
In case 2, you cannot replace "给" with other characters since normally if you changed vt, you changed the meaning.
I hope this can give you a tiny help. ( how to use color-level layout?)
No, They can't be replaced.
xxx地(openly) It is a phrase of adverb. 给(verb) literally means give, for XXX In This Case: 他十分坦率地"给"我讲了他的故事. He openly/honestly told his story for me.
If it replaces 替： the meaning will be different. 替 includes subbing meaning, as preposition can be used as same as 为，给. doing sth for somebody 替我倒一杯茶。to pour a cup of tea for me. In Your Case: 他十分坦率地"替"我讲了他的故事.here should be verb, He honestly subbed me to telling his story.
If It replaces 为: It usually will mean for..., to.... original: in order to. due to. etc. In Your Case： 他十分坦率地为我讲了他的故事. It makes sense that means He honestly told his story for me in my sake. 他很不情愿地为我帮助. It isn't coherent, but makes sense. He reluctantly did me a favor.
Some sentences: 她为我写了一封信。 She wrote a letter for me. 她替我去考试。 She subbed me to take a test (Verb). she took a test for me (preposition) 她给我一个吻。 She gave me a kiss. 她给我做菜。 She cooked up foods for me.
not all translations are for XXX in sentences. their meanings are similar. When you understand literally meaning you will make sense differently.
In general, According the context, you would easily understand which one is verb which one is preposition. when it is used for verb, it translates as original meaning. When it is used for preposition. it translates as doing sth for somebody.
Hope this helps.
They are not interchangeable. The latter two have fairly narrow meanings in that kind of context: 替 means "on behalf of"; it could be translated as "for," but only in constructions where it clearly means "on behalf of," as in "He did my work for me."
為 wèi means "for the sake of"; again, it could be translated as "for," but only in constructions where it means "for the sake of," as in "She took care of the financial matters, for my peace of mind."
給, on the other hand, has a whole slew of meanings, only one of which is "for." More generally, it can be used simply to indicate the indirect object of a verb, especially (but not exclusively) when that object is the "recipient" of something. That is more or less the way it is used in your example sentence.
Sometimes, Yes. For your example, No.
给 can work as verb(give) or preposition(for/by)
Example:
他给了我帮助。(He give me some help)--your example 2.
他给我买了些吃的。(He buys some food for me)--your example 1.
他给狗咬了一口。(He is bitten by a dog)
It looks confusing?
A 给 B something: A give B something. Verb(give)
A 给 B do something. Preposition(for/by)
1.If A is doing, it's "for"
2.If B is doing, it's "by"
替 also has 2 meanings: "instead of" and "for"
It's highly depend on context.
A过生日，我替A买了礼物。
A is celebrating his birthday, I brought some gift for A
B过生日，A有事不能去，我替A买了礼物。
B is celebrating his birthday, but A can't attend, I,instead of A, brought some gift.
Even for native speaker, it's hard to tell which meaning is used without context.
为 is much simpler-"for"
A过生日，我为A买了礼物。
A is celebrating his birthday, I brought some gift for A
It's easy to understand your example 2 is using 给 as verb so the replacement is wrong.
for example 2, 给 and 为 can be interchanged, but 替 will cause ambiguity.
edit: like @Fortcpp mentioned
给 is more like "to"
为 is more like "for"
So there may be some different, slightly?
他十分坦率地给我讲了他的故事. Okay
他十分坦率地替我讲了他的故事. Okay
他十分坦率地為我讲了他的故事. Okay
他很不情愿地给了我帮助.okay
他很不情愿地為了我帮助。wrong
他很不情愿地替了我帮助。wrong
when u are wondering 給 or 替 or 為, Choosing 給。 I come from China.Trust me:)
