| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] been [adv] [prep] | 520 |
|
| 2 | been [adv] [prep] years | 36 |
|
| 3 | [vb base] been [prep] years | 10 |
|
| 4 | [vb base] [adv] [prep] years | 8 |
|
