| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] before | 5690 |
|
| 2 | [adv] before | 4765 |
|
| 3 | perhaps [prep] | 2381 |
|
| 4 | perhaps [prep] | 2381 |
|
| 5 | perhaps before | 7 |
|
| 6 | perhaps before | 7 |
|
