He hasn't played basketball for 6 months.
→ The last time he played basketball was 6 months ago.

I find it difficult to find a better solution to that problem.
→ I have difficulty finding a better solution to that problem.

The last time I went out for lunch was five days ago.
→ I haven't gone out for lunch for five days.

There's no need for you to drive very fast. (using Modals)
→ You don't need to drive very fast.

This is the most beautiful city that I have ever visited.
→ This is the most beautiful city I have visited.