you <will> <would> <_> have to add an "a" "I am doctor." 1. To make the sentence grammatical, you have to add an "a" before "doctor." 2. To make the sentence grammatical, you'll have to add an "a" before "doctor." 3. To make the sentence grammatical, you'd have to add an "a" before "doctor." Are all three sentences correct? The question is about the numbered sentences. "I am doctor" is just an example. Imagine me writing this on some English learning site.

I told him he should tell her what he knew, but he didn't "I told him she should tell her what he knew, but he didn't." Imagine this sentence in a past-tense narrative, a story. Is it correct?

she said I should <tell> <have told> him what I knew Ten years ago, she said, "You should tell him what you know." Ten years ago, she said I should tell him what I knew. Is "should" correct, or should I use "should have"? Both sentences are supposed to mean the same.

Could I/we/you say “We don’t write in the first grade, we print. You won’t learn to write until you’re in the third grade.” 1. Could I say "in first grade" and "in third grade"? 2. Could we say "in first grade" and "in third grade"? 3. Could you say "in first grade" and "in third grade"? Which sentence sounds natural?

(It's) the morning after Tom Robinson's trial. 1. Here is a sentence from "To Kill a Mockingbird." Context: It's the morning after Tom Robinson's trial. 2. Here is a sentence from "To Kill a Mockingbird." Context: The morning after Tom Robinson's trial. Are both sentences correct? Which is more natural? Can I omit the "It's"? What if I removed the "Context" annotation? 3. Here is a sentence from "To Kill a Mockingbird." It's the morning after Tom Robinson's trial. 4. Here is a sentence from "To Kill a Mockingbird." The morning after Tom Robinson's trial.

I read a story in <the> <a> newspaper 1. I read a story in the newspaper. 2. I read a story in a newspaper. Which sentence is better? If they are both natural and common, what is the difference between them? "Read" is in the past tense (/red/).

A prize would be given to everyone who <gets> <got> the right answer. Here is a sentence in the present/future tense: A prize will be given to everyone who gets the right answer. What should I change to be able to use "would" instead of "will"? 1. A prize would be given to everyone who gets the right answer. 2. A prize would be given to everyone who got the right answer. Notice what I've done to the "get." The sentences are still in the present/future, but because of "would," they are hypothetical. Which sentence is correct? If both are correct, do they mean the same thing?

Have you ever heard "at 30,000 feet" used figuratively, the way the guy in the video <does>? Have you ever heard "at 30,000 feet" used figuratively, the way the guy in the video does? Is "does" correct or should it be "uses it"? If there are any other problems with this sentence, please let me know.

in some editions there's a period instead of <the> <a> semicolon in front of "I felt no fear" "...as well as the rest of them; I felt no fear..." It seems in some editions there's a period instead of the/a semicolon in front of "I felt no fear." Should I use "a" or "the"?