| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which [vb -s] [been] [vb pp] for [noun sg] | 13 |
|
| 2 | which [vb -s] been [verb] for [noun sg] | 13 |
|
| 3 | which has [been] [verb] for [noun sg] | 13 |
|
