– time + ago = time before now
- two years ago = two years before now
– time + before = time before then (before a past time)
- two years before = two years before then
Two years ago, I visited my home town, which I had left two years before.
– time + ago = time before now
– time + before = time before then (before a past time)
Two years ago, I visited my home town, which I had left two years before.