| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [adv] been | 11148 |
|
| 2 | [verb] previously been | 539 |
|
| 3 | have previously been | 539 |
|
| 4 | [vb past] previously been | 337 |
|
| 5 | had previously [been] | 335 |
|
| 6 | had previously [be] | 335 |
|
| 7 | had previously be | 335 |
|
