| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [prep] a [noun sg] | 33843 |
|
| 2 | once [prep] [art] [noun sg] | 813 |
|
| 3 | once [prep] [art] [noun sg] | 813 |
|
| 4 | once [prep] a [noun sg] | 411 |
|
| 5 | once [prep] a [noun] | 401 |
|
| 6 | once [prep] a [noun sg] | 396 |
|
