| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [adv] [prep] a | 2939 |
|
| 2 | [adv] [adv] [prep] a | 2272 |
|
| 3 | [adv] once [prep] [art] | 95 |
|
| 4 | [adv] once [prep] a | 40 |
|
| 5 | [adv] once [prep] a | 31 |
|
| 6 | [adv] once [prep] a | 31 |
|
