| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [prep] [art] time | 1688 |
|
| 2 | once [prep] [art] [noun] | 893 |
|
| 3 | once [prep] [art] [noun sg] | 813 |
|
| 4 | once [prep] [art] time | 161 |
|
| 5 | once [prep] [art] time | 161 |
|
| 6 | once [prep] [art] time | 161 |
|
