| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] which has been [v-ing] | 66 |
|
| 2 | [noun] [pers pn] has been [v-ing] | 64 |
|
| 3 | which [pers pn] has been [v-ing] | 19 |
|
| 4 | [noun] which [pers pn] has been | 14 |
|
