| by 2030 | by then | |
| by the time | before | |
| in ten years | within a month |
| By then I will have graduated. | ||
| By the time you arrive, we will have eaten. | ||
| Within a month they will have decided. |
By the time this group graduates, they will have studied English for eleven years. Most of them will have taken at least one international test, and some will have travelled abroad. In ten years they will have entered careers that do not exist today.