All of these words mean must or inevitable, but is there a difference between them?

  • instead of the adjective "inevitable", to use a single translation for all 3, the adverb "inevitably" may be more appropriate, or as predicate "it is inevitable" – user6065 Feb 11 '16 at 13:12
  • "实用汉语近义虚词词典"has 3 triples:必定/必然/一定,不得不/不能不/不会不,不得不/只得/只好。必定(副)/必然(副;形)/一定(副;形)[相同]都是副词,作状语,加强肯定的语气,强调"肯定是这样"。经常可以互换,稍有不同:"必定、一定"主要强调说话人根据情况对事物的判断,主观性强;"必然"主要是从客观规律、道理上判断,客观性强。"必定、必然"多用于书面语,"一定"口语和书面语都用。1坚持多听多说,听说能力必定会提高。(必然✓一定✓)2天天打太极拳必定对身体有好处。(必然✓一定✓)3只要你付出努力,必然有收获。(必定✓一定✓)4只要继续努力,你的理想必然会实现。(必定✓一定✓)5如果自己解决不了,她一定会来找你帮忙。(必定✓必然✓)6骄傲的人一定会犯错误。(必定✓必然✓)[不同]1。有判断词"是"的判断句中用"必定、一定",不能用"必然":1我看,他必定是在中山大学学习的外国留学生。(一定✓必然✗)2从饮食习惯来看,他必定是南方人。(一定✓必然✗)3听口音,他一定是北京人。(必定✓必然✗)4看样子,她一定是个演员。(必定✓必然✗)2。"必定、一定"还可以用在第一人称的句子中,表示说话人态度坚决,不过"一定"更常用,特别在口语中,很少使用"必定";"一定"可以和"要"连用,可以用在祈使句中,"必定"不能:1你放心,东西我一定按时送到。(必定✓必然✗) – user6065 Feb 12 '16 at 14:06
  • 1他叫我去,我不得不去。(不能不✓不会不✗)2在飞机上,不得不关手机。(不能不✓不会不✗)3明天的会议很重要,你不能不参加。(不得不✓不会不✗)4他病得很厉害,不能不去医院看病。(不得不✓不会不✗)2。"不能不,不会不"有时可以互换,但意思也有一些不同:"不会不"是根据情理做出的估计,猜测;"不能不"强调主观上认为不这样不行,一定要这样:1你是他的哥哥,不能不帮他。(不会不✓不得不✗) 2他们是我的父母,我不能不管他们。(不会不✓不得不✗)3我请了他几次,他今天不会不来吧? (不能不✓不得不✗)4我想,他结婚不会不通知我吧?(不能不✓不得不✗)[不同]1。"不会不"是根据情理做出的估计、猜测,表示情况应该是、很有可能是这样的;明显表示估计猜测时,用"不会不":1您能来,他们不会不高兴。(不能不✗不得不✗)2这件事都登报了,你父母不会不知道。(不能不✗不得不✗)3他们曾经是邻居,见了面不会不认识。(不能不✗不得不✗)4我们考得那么好,老师不会不满意。(不能不✗不得不✗)2。"不得不"强调不愿意、无奈,句子明显有"不愿意、无奈"的意思时,用"不得不":1陈明受伤严重,不得不放弃了比赛。(不会不✗不能不✗)2为了保住林勇的生命,医生不得不截掉了他的右腿。(不会不✗不能不✗)3为了给孩子治病,他不得不卖掉了房子。(不会不✗不能不✗)3。"不能不"后面可以带表示情感状态的动词, – user6065 Feb 13 '16 at 3:50
  • 不得不: have to, there are factors/reasons that force someone to (do something)

    由于过热,我不得不关闭机器
    I have to turn off the machine due to overheating.
    I have no choice but to turn off the machine due to overheating.

  • 不免/难免: would naturally; cannot help but.1 (It sounds more like reasonable than inevitable. See example below)

    工作量大,不免会有失误。
    It'd be normal to make mistakes due to the high workload.
    (The mistakes can be avoided if careful enough. But due to the workload it is very reasonable to make mistakes. You can use 必然 here)

  • 必然: inevitable, certain. (At least the speaker believes so. There may be reasons, or there may be none)

    宇宙中必然有其他生命存在。
    There must be other forms of life in the universe.
    (The speaker believes so, but he doesn't necessarily prove it. There may be no reason given for the statement)

Your Answer

 

By clicking "Post Your Answer", you acknowledge that you have read our updated terms of service, privacy policy and cookie policy, and that your continued use of the website is subject to these policies.

Not the answer you're looking for? Browse other questions tagged or ask your own question.