| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [v-ing] [prep] | 19874 |
|
| 2 | been [v-ing] [prep] | 6841 |
|
| 3 | [conj] been [prep] | 43 |
|
| 4 | [conj] been [v-ing] | 20 |
|
