| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [been] [adv] [vb pp] | 8367 |
|
| 2 | previously [been] [vb pp] | 383 |
|
| 3 | previously [adv] [vb pp] | 37 |
|
| 4 | previously [been] [adv] | 32 |
|
