| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [prep] years | 392 |
|
| 2 | [vb pp] [prep] eight | 340 |
|
| 3 | [prep] eight years | 300 |
|
| 4 | [vb pp] eight years | 29 |
|
