| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adj] [prep] eight years | 31 |
|
| 2 | [num] [prep] eight years | 21 |
|
| 3 | [adj] to eight years | 18 |
|
| 4 | [adj] to eight years | 18 |
|
| 5 | [adj] for eight years | 6 |
|
| 6 | [adj] for eight years | 6 |
|
| 7 | seven [prep] eight years | 5 |
|
| 8 | [adj] [prep] eight years | 5 |
|
| 9 | seven [prep] eight years | 5 |
|
