| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | once [prep] a [noun sg] there [be] | 18 |
|
| 2 | once [prep] a [noun sg] there be | 18 |
|
| 3 | once [prep] a [noun sg] there [was/were] | 18 |
|
| 4 | once [prep] a [noun sg] there was | 14 |
|
