| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | once [prep] a time [prep] | 8 |
|
| 2 | once [prep] a time [prep] | 8 |
|
| 3 | once upon a time [prep] | 8 |
|
| 4 | once upon a time [prep] | 8 |
|
| 5 | once [prep] a time in | 7 |
|
| 6 | once [prep] a time in | 7 |
|
