| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] once a [noun sg] | 297 |
|
| 2 | once upon a [noun sg] | 163 |
|
| 3 | [noun] upon a [noun sg] | 100 |
|
| 4 | [noun] once upon a | 9 |
|
