English
posted by rfvv .
1. How many ballpoint pens do you have?
2. How many ballpoints do you have?
3. How many ball pens do you have?

Is #3 incorrect?
4. It's close to my house.
5. It's near my house.
6. It's by my house.

Do you use the the expressions frequently? They have the same meaning, right?

No one will know what 2 or 3 mean without context. Sentence 1 is best.
All three of 4, 5, and 6 are commonly used, and yes, they mean the same thing.
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