1) Is there any such expressions as "Put a dent in someone's reputation" and "Your lies will catch up to you"? - Yes, they both make sense and could be used. 2) Do you say "I hate how there are some people defending his actions" or "I hate the fact there are some people defending his actions"? -Both are possible. 3) Do you report a crime to someone or can you report someone about a crime? - Only the first one. The second would be more like ' report someone for committing a crime' 4) Can you say "What's in it for you to him about that?"? What about "What does he HAVE TO gain from lying about that?"? - The first doesn't make sense. the second is fine. 5)Finally, would you say "I though you ONLY could apply for the fall courses" or "I thought you could apply ONLY for the fall courses"?? - Both are ok depending on the context. The first indicates only one person can apply for the fall courses and the second indicates that the fall courses are the only courses you can apply for.

1. Put a dent in someone's reputation would be understood, but not commonly used. 'Your lies will catch up WITH you' 2. Both sentences are OK and would be commonly heard, but the second would be somewhat more formal and regarded as more correct by purists (I'm not a purist) 3. Both are correct but mean different things. To report a crime to someone means that the someone is somebody in authority and you are telling them that a crime has been committed, to report someone about a crime would mean that you believe that the someone is the criminal and you are telling the authorities this, although we would normally say FOR instead of about. 4. I'm not sure what the first sentence is trying to say, the second is OK 5. The position of 'only' here changes the meaning of the sentence in many contexts, particularly in more old fashioned formal English 'you only' could mean 'you alone' in other words, in this sentence, something like 'You are the only person who could apply for the Fall courses (i.e. nobody else could apply), the second sentence, with only after the verb would have the same meaning as the more common order of 'only apply' - in other words the sentence would mean 'I thought that the fall courses are the only courses for which you could apply'

1) Yes, those first two expressions exist and make sense :) 2) Either way of saying this is really fine, it would just make a little more sense if you added in: "I hate the fact THAT there are some people defending his actions". You will be understood either way, though! I guess the only difference is that the second one seems a little stronger to me. 3) You report a robber's crime to the police. 4) The first sentence doesn't make much sense, but the second sentence is good 5) The placement of "only" in this sentence depends on what you are trying to express.. If you say "I thought you ONLY could apply for the fall courses", that means that you couldn't do anything except for apply for the fall courses (i.e. you couldn't teach them, applying is your only option). If you say "I thought you could apply ONLY for the fall courses", that means that you couldn't apply for any courses that are not the fall courses (i.e. you couldn't apply for the summer courses, you could only apply for the fall courses) Note that this is just technically what the placement means. In reality, it does not matter that much where you put only, as the context will be enough for the listener to understand what you mean. The more I think about it, English speakers put only all over the place, and we understand what the only is referring to by the context. It also has to do with the way words around it are stressed.. Like I said above, if you say "I thought you ONLY could apply for the fall courses", that means that you couldn't do anything except for apply for the fall courses. However, if you stress your words so that it is more like "I thought YOU ONLY could apply for the fall courses", even though it is the same exact sentence, the phrase "you only" being stressed makes the sentence's meaning more like "I thought that you were the only one who could apply". I'm sorry for how long this answer was, but I hope I helped a little bit :) Keep it up woohoo!