| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] been [vb pp] [prep] | 10594 |
|
| 2 | been [vb pp] [prep] a | 5754 |
|
| 3 | [vb base] [vb pp] [prep] a | 1413 |
|
| 4 | [vb base] been [vb pp] a | 191 |
|
| 5 | [vb base] been [prep] a | 173 |
|
