One thing I wonder is when I go to Japan and I start making grammar mistakes, will I still be understood?
If I were to use the long form of a verb with んです would I still be understood?
The explanatory の/ん shows that the speaker confirmed what the one they are talking with said. Thus, for instance, 約束なんですね means "Oh, I see, you have an appointment with your girl friend tonight", and Tanaka doesn't have any appointment with Ken yet.From looking over what I wrote and what you pointed out it seems like when I used の for a explanation it is correct, right?
There is no difference in meaning or nuance. When the object also can be interpreted as the subject, i.e., when the object is a person/people or an animal,It says I can use either を or が for potential verbs that take を. What is the difference here?
It's called ら抜き言葉. It's indeed widely used in spoken language, but it's considered grammatically wrong, so you'd better to avoid using it in formal situations.For class 2 verbs it says that sometimes that first ら is left out. Does this have any effect I am not aware of?
There is no problem with 書類を修正できません.And finally its says that できる, which is the potential form of する, always takes が.
That's exactly the difference. し is used for listing examples. Even when the example is just one, it suggests that other examples exist.What is the difference if I just used から instead of し?
The one thing I do understand is that if you use just one し it has the nuance of "among other things."
熱そう. 暑い is only used for climate/air temperature.私は暑そうなコーヒーを飲みたいです。
ドアサムさんは早くドルを閉めたと言っていました。
ゆっくり食べて、喜んで/楽しく仕事に行きました。早くなく食べて、うれしく仕事に行きました。
は, が and を are hidden behind なら, but other particles are not.It seems to replace particles, I am not sure.
天気は寒い is odd. It's OK just 今日は寒い.今日の天気は寒いから、私はいいコートがほしいです。Because today's weather is cold I want a nice coat.
私は新しい携帯がほしいですよ。I want a new phone.
Unlike just ほしい, が can't be used to indicate the object of ほしがる. It's always the subject marker, i.e., 猫がほしがっていません means "The cat doesn't want it".トムさんは猫がほしがっていません。Tom does not want a cat.
ひなたさんは青い靴がほしがっています。Hinata wants the blue shoes.
でしょう is more certain.Next is かもしれません. This sounds just like でしょう. I am confused if there is any difference.
この本は高かったかもしれません。What is the difference?
この本は高かったでしょう。
安い車のほうを is not wrong but 安いほうの車を is more natural since you are comparing the price of the car (安い方 vs. 高い方), not the car vs. something else.安い車のほうを買ったらどうですか。 Why don't you buy the cheaper car? I think something might be wrong with this one.
Right.From what I can tell ほうがいい is more of a suggestion and less critical.
くれる is odd here since the subject/agent 母 is also the speaker's in-group member. あげる or other verb such like 贈る/プレゼントする/渡す are used in these cases.母は妹に指輪をくれます。 Mom will give my little sister a ring. The subject is on the giver, but the recipient is my little sister, which is fine since she would be in my "group."
に can be used also for other things than people. Note that に also indicates the recipient. から is often preferred for the giver to avoid being misinterpreted.From what I could tell に is used with people and から with everything else. Is this right? I am talking about the particles for もらう here.