The correct sentence would be:
This is Luke's book.
If Luke ended in an s, the apostrophe would be after the s ; since it doesn't, an apostrophe and then an s must be added for possession.
Example: Jesus' disciples, John's disciples....
"This is Luke's book" is the correct sentence. The apostrophe before the 's' indicates possession by Luke.
The correct sentence is "Us students have a lot of work to do. Please return the book to us when you can."
Yes, it is correct to use the past tense after "would you mind if" in a sentence. For example, "Would you mind if I borrowed your book yesterday?" is a grammatically correct sentence.
Yes, it is grammatically correct to end a sentence with a prepositional phrase. For example, "I went to the store" or "She is reading a book on the table."
All three sentences are grammatically correct. Each one follows the standard subject-verb-object structure and uses appropriate punctuation.
The incorrect word in the sentence is "whos." It should be spelled as "whose." The correct sentence would be: "Whose book is this?"
When a book is good, I get lost. It was this sentence grammatical corrected.
The sentence: "He concurs this book is good." is not grammatically correct. Alternatives include "He concurs; this book is good." or "He concurs that this book is good." A sentence cannot have two verb-subject pairs without some kind of conjunction.
The grammatically correct statement is "She does not have her book." In English, the verb "have" is used as an auxiliary verb in negative sentences, so the correct form is "have" instead of "has."
Yes, the sentence "She will have been reading the book when you get there" is grammatically correct. It describes an action that will be ongoing (reading the book) before another action (you getting there) in the future.
there shouldn't be a question mark. but other than that, yes
Yes. There's nothing wrong with it grammatically.
If you mean grammatically correct, then no. "This book can't be checked out of the library" would be acceptable.
No, it is not correct to say that a book was written by "I." Instead, you should refer to the specific author who wrote the book.
Yes
No, the correct sentence should be: "This pen is behind the book."
Yes, it is correct to use the past tense after "would you mind if" in a sentence. For example, "Would you mind if I borrowed your book yesterday?" is a grammatically correct sentence.
Yes, it is grammatically correct to end a sentence with a prepositional phrase. For example, "I went to the store" or "She is reading a book on the table."