| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] time [prep] | 4222 |
|
| 2 | [conj] [prep] [prep] | 654 |
|
| 3 | [conj] [prep] time | 367 |
|
| 4 | [conj] time [prep] | 208 |
|
