| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pers pn] [vb base] been [v-ing] [prep] | 1314 |
|
| 2 | which [pers pn] [vb base] been [v-ing] | 60 |
|
| 3 | which [vb base] been [v-ing] [prep] | 14 |
|
| 4 | which [pers pn] [vb base] [v-ing] [prep] | 9 |
|
