It looks like you're working on transforming sentences into a wish or desire format. Here’s how you can express those statements as wishes or promises:

1. **I don't have enough time to visit my family this weekend.**
→ **I wish I had enough time to visit my family this weekend.**

2. **He can't play the piano very well.**
→ **He wishes he could play the piano very well.**

3. **They would like to go to the concert this weekend.**
→ **They wish to go to the concert this weekend.**

4. **He gave his word that he would help me with the project.**
→ **He promised that he would help me with the project.**

If you need further assistance or clarifications, feel free to ask!