1. This book is worth reading.

2. This book is not worth 10 dollars.
3. He is worth meeting.
4. This place is worth visiting.
5. New York is worth visiting twice.
6. She is worth prasing.
7. The dog is worth buying.
8. This car is worth purchasing.
9. This car is worth washing.
10. This car is worth driving.
11. He is worth praise.
12. This house is worth a visit.
13. This house is worth visit.
14. This house is worth gold.
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I have made many sentences using the structure 'be worth ....' Would you check the sentences and let me know ungrammatical esentences? Thank you.

11 is ungrammatical, by saying a person/object is worth something, we are putting a kind of value to that person/object. It is better to write 'he is worthy of praise' or 'he is worth praising'

Same reasoning applies to 13, where 12 is a more suitable form

Agree

Sure! Here are the grammatically incorrect sentences in your list:

2. This book is not worth 10 dollars.
(Note: The correct form should be "This book is not worth 10 dollars." It is missing the verb "is" before "not.")

6. She is worth prasing.
(Note: The correct spelling is "praising.")

11. He is worth praise.
(Note: The correct form should be "He is worth praising." The noun "praise" should be turned into a verb form, "praising.")

13. This house is worth visit.
(Note: The correct form should be "This house is worth a visit." The sentence needs an article "a" before the noun "visit.")

I hope this helps! Let me know if you have any more questions.