Although somewhat clumsy, it is correct yes (and ridiculously stiff, but if that's also the purpose of the sentence I won't argue). I would, however, recommend adding a noun at the end - presumably "document" or something else fitting, that clarifies and also lessens the abrupt stop of the sentence.
This sentence is not grammatically correct. For the sentence to be grammatically correct, the space between "in" and "to" would have to be removed. Therefore the sentence should read "They are into skating."
"That was wrong" is a grammatically correct sentence.
It would be better to say, 'I am forwarding this mail, for your information.', or 'We are forwarding this mail for your information.'
Yes, it is grammatically correct.
This sentence is grammatically correct.
No. It has two errors. One is that the verb appreciate means to understand the value of something, or to increase in value. Use like, or approve of, or something similar. The other is that the object of the verb is assuming, not the pronoun him. What we disapprove of is his assuming. The sentence should read: I did not like his assuming (that) he would be the leader.
This sentence is not grammatically correct. For the sentence to be grammatically correct, the space between "in" and "to" would have to be removed. Therefore the sentence should read "They are into skating."
"That was wrong" is a grammatically correct sentence.
The sentence is grammatically correct.
It would be better to say, 'I am forwarding this mail, for your information.', or 'We are forwarding this mail for your information.'
Yes, the sentence is grammatically correct. It uses parallel structure with "he needs to finish" and "she does," making it clear and easy to understand.
quotation marks. This helps to indicate that the added words are not part of the original quote but have been included for clarity or to improve the sentence's grammatical structure.
Yes, the sentence is grammatically correct.
appreciate
Yes. Strictly speaking For example at the beginning of a sentence is what is called an "absolute," grammatically unconnected to the rest of the sentence.
Yes, it is grammatically correct.
The sentence "Rhoda's Crazy" is not grammatically correct. It is missing a verb to make a complete sentence.