| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun prp] [verb] been [v-ing] [prep] | 611 |
|
| 2 | which [verb] been [v-ing] [prep] | 128 |
|
| 3 | which [noun prp] [verb] been [v-ing] | 32 |
|
