| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who have been [v-ing] [prep] | 332 |
|
| 2 | who have been [adj] [prep] | 320 |
|
| 3 | have been [v-ing] [adj] [prep] | 211 |
|
| 4 | who have been [v-ing] [adj] | 70 |
|
