| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | once [prep] [art] [noun] | 893 |
|
| 2 | once [prep] [art] [noun] | 893 |
|
| 3 | [adv] upon [art] [noun] | 560 |
|
| 4 | [adv] upon [art] [noun] | 477 |
|
| 5 | once upon [art] [noun] | 165 |
|
| 6 | once upon [art] [noun] | 165 |
|
