| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [verb] been | 6252 |
|
| 2 | which have been | 6251 |
|
| 3 | which [vb past] been | 2745 |
|
| 4 | which had been | 2745 |
|
| 5 | which [vb -s] been | 2076 |
|
| 6 | which has been | 2075 |
|
| 7 | which [vb base] been | 1430 |
|
| 8 | which have been | 1430 |
|
