1. The earth goes around the sun.
2. The eatth moves around the sun.
3. The earth goes round the sun.
4. The earth moves round the sun.
(Which one do I have to use?)
5. Many boys were sitting around the lake.
6. Many boys were sitting round the lake.
(Do I have to use 'round' or 'around'? Which one is right in Sentence 5 and Sentence 6?)
7. Poor people are not always miserable.
(In this sentence is 'people' a common noun or a collective noun?)
8. However hard a problem it may be, you have to solve it.
9. However strong a man he may be, he can not lift the rock.
10. However rich a man he may be, he can not buy the building.
(Are the three sentences grammatical? Can we use 'is' instead of 'may be'?)
1 and 2 are best.
5 is best.
The word "round" is an adjective that describes the shape of a circle. The word "around" is mostly used as an adverb or a preposition, as you have used it in your sentences.
7 - In that sentence "people" is both a common noun (not referring to any one person by name) and a collective noun; thus the plural verb form that goes with it.
8 - 10 are fine as they are; don't substitute "is."
1. The correct sentence is "The earth goes around the sun." This is a straightforward statement about the earth's orbit.
2. The correct sentence is "The earth moves around the sun." This sentence conveys the same meaning as the first sentence but uses the word "moves" instead of "goes."
3. The sentence "The earth goes round the sun" is grammatically correct, but it uses a more informal construction. In formal writing or when you want to be more precise, it is better to use "around" instead of "round."
4. The sentence "The earth moves round the sun" is grammatically correct, but it uses a more informal construction. In formal writing or when you want to be more precise, it is better to use "around" instead of "round."
Regarding the usage of "round" and "around":
5. Both "round" and "around" can be used in Sentence 5 and Sentence 6, but "around" is more commonly used. So, the correct sentences would be: "Many boys were sitting around the lake" and "Many boys were sitting around the lake."
In Sentence 5 and Sentence 6, you can use either "round" or "around," but "around" is more widely accepted.
7. In the sentence "Poor people are not always miserable," the word "people" is a common noun. It refers to a general, unspecified group of individuals who are poor.
8. The sentence "However hard a problem it may be, you have to solve it" is grammatically correct. The phrase "however hard" emphasizes that no matter how difficult the problem is, you are still expected to solve it. Using "is" instead of "may be" would change the meaning of the sentence.
9. The sentence "However strong a man he may be, he cannot lift the rock" is grammatically correct. The phrase "however strong" emphasizes that no matter how strong the man is, he cannot lift the rock. Using "is" instead of "may be" would change the meaning of the sentence.
10. The sentence "However rich a man he may be, he cannot buy the building" is grammatically correct. The phrase "however rich" emphasizes that no matter how wealthy the man is, he cannot buy the building. Using "is" instead of "may be" would change the meaning of the sentence.