1. I often go skiing with my friends on weekends.

Question

2. I often go skiing with my friends
weekends.

3. I often go skiing with my friends on the weekends.

4. I often go skiing with my friends on the weekends.

Are they all grammatical?
Would you let me know incorrect expressions?

Answer 1

Thank you for using the Jiskha Homework Help Forum. Having read the later posts, #4 is "weekend" singular, right? The only one that doesn't seem quite as good is #2.