| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | before [verb] [adv] | 1922 |
|
| 2 | [prep] do [adv] | 1557 |
|
| 3 | [prep] do [adv] | 1466 |
|
| 4 | before do [adv] | 47 |
|
