| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [adv] [prep] a [adj] | 304 |
|
| 2 | [prep] [adv] [prep] a [adj] | 257 |
|
| 3 | [prep] once [prep] [art] [adj] | 53 |
|
| 4 | [prep] once [prep] a [adj] | 29 |
|
| 5 | [prep] once [prep] a [adj] | 29 |
|
