| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] had been | 25566 |
|
| 2 | which [verb] been | 6252 |
|
| 3 | which have been | 6251 |
|
| 4 | which [vb past] been | 2745 |
|
| 5 | which had [be] | 2745 |
|
| 6 | which had [been] | 2745 |
|
| 7 | which had be | 2745 |
|
