Are a and b both right?

I'd be more likely to say a, but I can't see anything grammatically *wrong* with b.

We actually can’t answer this without seeing the wording of the question. What does the prompt say? B is a weird phrase and it feels like a deliberate “off” path to take. The best answer is A.

We would generally say a rather than b. When we are expressing doubt in a positive outcome, it's usually "I don't think..." "I think she'll fail the exam" would work too.

They're all technically viable, but A is the most natural and what I would probably say in this scenario

I'm not a native speaker, but both a and b are grammatically correct and convey the same meaning. However, I have learned that when we express a negative opinion about something, it's more idiomatic in English to negate the verb of opinion ( believe, think, understand ) rather than negating the clause that follows it. Therefore, the first option "I don't think she'll pass the exam" often sounds more natural. ( Sorry for my bad English, I'm still at my early stage of learning )

Any one of them could be correct, depending on the intent. There’s no grammatical issue here.

All 3 work, but A feels the most natural.

All three are grammatically correct, though C has, essentially, the opposite meaning of both A & B, and is not a sentence structure that you're likely to encounter 'in the wild' very often, if ever. A is more usual than B, which, essentially, express the same idea as A, but more strongly.

I would choose d: won’t

a is for if you are uncertain but are leaning towards her not passing b is for if you're certain she will not pass

First, all three do NOT work. Answer C is grammatically incorrect. Full stop. _Answer A is the only correct choice._ Answer B _>splits the infinitive<< by placing a word between the verb and the helping verb. While acceptable in spoken English, it is not valid in the written form. Answer C is a _>double negative<_ and is neither acceptable in spoken nor written English. Professional Technical Editor Since 1989

I would use: A in most cases. B if someone else just said they think she will. C if I doubt her ability to ace it but am pretty sure she’ll do better than failure.

a is the only natural-sounding one, but the other two are still grammatically correct and could _probably_ be used if you want a certain connotation, though all such connotations suggested in this comment section don't sound right to me, mainly because "won't pass" has the exact same meaning as "fail", and it's typically more natural to use the latter. Contrast this with antonyms like "right" and "wrong"—"not wrong" is commonly used and has a different implication compared to simply "right". "Not right" is similarly commonly used and has a different implication compared to "wrong". But I rarely see anyone say "won't pass". The only context I can see c being used in would be to clarify a misunderstanding—"Alex thinks she won't pass the exam." "No? I _don't_ think she won't pass the exam. I think you're mistaken." Similarly for b, I can only really see it being used to emphasize the "won't" to contrast it with something else, like someone else's opinion or expectation—"I really thought she would be able to do well enough to graduate. But with how things have been going... I think she won't pass the exam." The "won't" here conveys the failure to meet up to expectations. Still feels like "I _don't_ think she'll pass the exam" is more natural though. Perhaps if the word "I" is also emphasized it may fit better, because emphasizing "I" and "don't" back to back is weird. Like—"I think she'll actually be able to pass the exam!" "That idiot? Well, _I_ think she _won't_ be able to pass the exam. She's a lost cause."

Both A and B sounds fine to me C is a double negative They all could be valid, depending on context, but don't have equivalent meanings

A is more correct. B is something you would say in a nonformal setting.

A is how I normally phrase things , while B is grammatically correct . C means completely opposite

A is probably the right answer, but b seems fine albeit not how someone would naturally phrase that thought. C is weird phrasing. Double negatives like this aren't common in English.

Interestingly, while both work grammatically and do make sense, the *feeling* behind each is slightly different. “I don’t think she’ll pass the exam” sounds a bit more… passive? Almost like it’s said with some uncertainty, like it’s a guess. Meanwhile “I think she won’t pass the exam” sounds more certain, as if you’re more directly stating that you believe she will fail.

technically there's nothing wrong with any of them

(Not a native) I think A is definitely correct, and B is correct only in certain situations, if you really want to emphasize the fact that she is going to fail. In polite English it’s common to “soften the blow” - “I don’t think that X” is softer than “I think that not X”, when X is the positive outcome.

yes, but a is more common. Honestly all of them are right, but for c it makes more sense to just say "I think she'll pass the exam" since c is a double negative

Technically, they all work. A is the simplest: "I don't think she'll pass the exam" expresses your belief that "she" is unlikely to score well on the test. B suggests some level of emotion or hidden knowledge. For example, you might be expressing exasperation at the fact that "she" doesn't study or pay attention in class, so sure, "she" might be a very intelligent person, but that's not enough to get her through this important test. Or, maybe you have insider knowledge that the teacher or teacher's assistant won't allow her to pass the exam, no matter how "she" scores. C is a very roundabout way of expressing that you think "she" has rather liminal ability: You don't think "she" won't pass the exam, but it's probably going to be a close call - or, her passage will be due mostly to factors other than genuinely being prepared to take it (ex: good luck, being the teacher's favorite). If I was going to guess what the test wants you to answer, I would choose A. It's the simplest and most straightforward answer. Unless there are directions to indicate that something else is desired, "the simplest and most straightforward" is usually the best choice.

A might be concerned, but negative. B might be condescending and negative. C might be tentatively supportive.

Yes. A and B mean *very slightly* different things though, or rather they put the emphasis in a different place.

Technically a, b, and c are all correct, they just mean different things.

Its very hot in here is the correct answer

"I think she won't" is not wrong, but sounds a little unnatural. It's just not how it's typically said.

Those all make correct sentences.

I mean they all work. C is a double negative but can be used for emphasis or evasiveness.

All the answers are grammatically correct, but I wouldn't normally say B or C

A is the only correct answer. I’ll show why by explaining why B and C are wrong as they violate rules that A does not. B is wrong because we use negatives before the main verb of the sentence, and the main verb of the sentence is “think”. We know it’s the main verb because the main verb applies to the subject of the sentence. The subject of the sentence is whoever is “doing” the action. In this case, the subject is “I” and what is the “I” doing? They’re thinking. So, any negatives that happen in the sentence must come before the word “think” meaning the sentence must start with “I don’t think” if it has a negative in it. This means B is wrong. C is wrong as it’s a double negative, you can’t have two negatives (don’t and won’t for this example) in the same sentence. They essentially cancel one another out. Writing “I don’t think” means you don’t believe what is written after it. In this case, the speaker doesn’t believe that “she won’t pass”. This means that the speaker believes she will pass. It’s much easier to write “I think she will pass” than it is to use a double negative. It can be hard to fully understand, so you can focus on recognizing that two negatives in one sentence is incorrect. If you want to understand what the sentence means, you can just substitute the negative words with their non-negative versions. For this example, don’t is the negative form of “do” and “won’t” is the negative form of “will”. So, the sentence becomes “I do think she will pass”. I hope this helps, ask me any questions you have :) I’m a native speaker, but I studied English in college. I’m not the best and I had to look up the answer for some of these as I could feel that it was wrong but couldn’t give the proper reason off the top of my head. I’m confident that I’m correct after looking into it Last thing, I’d recommend believing anyone who says they’re native and it “feels right”. A lot of things that “feel right” or “seem okay” are because you can still understand someone despite them using incorrect grammar even if their sentences are a bit jarring to hear. Better to believe stuff when you have a concrete rule that can be applied to it! At least in my experience

A and B both make grammatical sense, though A would be the most natural way to say it. To me, there is slightly more certainty in statement B (due to how it would be stressed when you say it aloud). C is not very natural and is a double negative but could come up when you’re emphasising something like “I don’t think she *won’t* pass the exam, but she won’t get a high grade”. Even so, I think it would be better said as “I don’t think she’ll fail the exam…”

A and b for sure, but you’d get away with using c. It’s a double negative but those are allowed

Both 'a' and 'b' are correct. I'd even say that 'c' isn't wrong, though it is awkward.

They are, gramatically speaking, but I think a is more used in practice

Yes, both a and b are correct.

Both would be correct; I say A more, though.

They are all grammatically correct.

Both an and b are right, I think it would depend on a persons dialect as to which they’d say. But personally I’d probably use a instead of b.

The answer is a

Since both A and B are correct answers( C is grammatically right) i would say the answer depends on the grammar rule covered prior the test. Let's say the course is covering affirmative expressions or negatives using don't/doesn't, that would make the difference. If this is just a general english exam, well both A and B could be right.

Yes

They are both right.

All three are technically correct, but stylistically, "a" is more natural to native speakers. This is more of a stylistic question than a right or wrong question.

A and B are both fine. To me, B implies more confidence that she will fail. I wouldn’t be shocked to hear C as a cheeky disagreeing response to someone saying she won’t pass the exam, though it does sound more awkward, as double negatives are rarely the best way to get the message across.

A is correct. The other two are grammatically fine but sound awkward and unnatural.

All three options are grammatically correct

A is far and away the best option in my opinion B makes perfect sense but sounds a little unnatural for me. It might be used in places like Britain more often. C could work in very specific situations, but it’s not a common way to phrase what you want to convey. “I think she’ll pass” would be efficient if you’re trying to be concise

A and b are negative expressions - meaning you doubt she will pass the exam. C is a double negative expression (like in math, subtract a negative and you get +). So, in this you are saying you doubt she will fail the exam

All three are grammatically sound. The phrasing of C is awkward, but not in violation of any grammatical rule.

I think she didn’t pass the exam , I’m enough with English 🤨

I think she’ll not pass the exam

The rule about predictions: We often use I think / I don't think / I'm sure + will. I think he'll fail the exam. I don't think he'll pass the exam. NOT I think he won't pass

A is almost certainly the answer they're looking for. All three could be correct, depending on context, but A is the most "normal" thing to say. A: Normal usage: "She probably won't pass the exam." B: This puts the emphasis on the fact that it's *your* opinion, probably used to disagree with someone else: "Personally, *I* think she *won't* pass the exam."  C: In real conversations, this would be saying you don't have a strong opinion on whether she'll pass. Often used to clarify previous statements: "I think she'll struggle, but I'm not saying she can't pass the exam."

I would say yes, but I think a sounds better when you say it out loud.

Both are correct but I think most people would find A more natural.

A is most natural.

Since "she'll" is just a contraction of "she will" and "won't" is contraction of "will not", the sentences can be thought of as saying "I do not think she will pass the exam" and "I think she will not pass the exam." Both of these are correct, but A is the more commonly used phrase. Just a little more nuance, saying "I think she will not pass the exam" might sound a little bit more certain that she will fail.

Because of the given word “pass” in the sentence frame, a is the most concise option. You could also say “I think she will fail the exam”.

They would both work, but I think B seems to express more certainty. There is nothing wrong with C grammatically, but it means essentially the opposite of the other two.

They are all correct English , but mean different things. A is less certain than B. C is a convoluted way of saying you she willl pass, or enter into some other state which is neither passing or not passing

they're all right. c is a double negative, but not really an offensive one. i do not think she will not = i think she will. a or b make the most sense as the answer though, both are natural.

yes, and also c. They are all correct, depends on what you were asked. This is probably personal opinion, but a is when you are asked if she will pass, b is whether you *think* she will pass, and c is if you are asked whether you think she won't pass. This sub is telling me that most english teachers are very bad at english.

A is best; B is perfectly acceptable.

Yes. It's a bad question.

If you said b, you wouldn’t sound like a native speaker. Understood, sure.

I think an and b can be correct. A conveys a slightly less definite opinion than B. B seems more certain.

They are all grammatical and sound right to me as a native speaker.

A and B are fine. C is also a grammatical sentence, but it is a weird thing to say: I suppose it might be said for emphasis in response to something else.