1. Math is complex but useful.
2. Music is not only easy but also interesting.
3. Social studies is informative as well as interesting.
4. Music is not boring but exciting.
5. Technical arts is not only useful but also informative.
6. Chinese characters is annoying but helpful.
7. He is strong and humorous.
8. He is strict but witty.
9. She is attractive and well-teaching.
10. She is not ugly but charming.
11. She is not only gentle but also skillful.
12. He is handsome as well as fluent.
13. He is well-built but boring,
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Thank you for your help. Help me use correct and common expressions, please. Are the sentences all grammatical?
6. Chinese characters are annoying but helpful.
9. She is attractive and well educated.
12. He is handsome as well as fluent in Italian.
13 needs a period at the end, not a comma.
Everything else is fine.
Yes, all the sentences you provided are grammatically correct. However, some of the expressions used in the sentences might not be the most common or natural way to convey the intended meaning. Here are some suggested revisions to make the sentences more idiomatic:
1. Math is complex but practical.
2. Music is not only easy but also captivating.
3. Social studies is informative and interesting.
4. Music is not boring but exhilarating.
5. Technical arts is not only useful but also informative.
6. Learning Chinese characters can be frustrating but helpful.
7. He is strong and funny.
8. He is strict yet witty.
9. She is attractive and a great teacher.
10. She is not ugly but rather charming.
11. She is not only gentle but also skilled.
12. He is handsome and articulate.
13. He has a good physique but is boring.
These revisions use more common expressions while maintaining the overall meaning of the original sentences.