| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [v-ing] [prep] | 19874 |
|
| 2 | [conj] [prep] time | 367 |
|
| 3 | [v-ing] [prep] time | 254 |
|
| 4 | [conj] [v-ing] time | 70 |
|
