| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [been] [vb pp] | 32920 |
|
| 2 | [vb past] [vb pp] [n mass] | 362 |
|
| 3 | [been] [vb pp] [n mass] | 104 |
|
| 4 | [vb past] [been] [n mass] | 41 |
|
