| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that [prep] a [noun sg] | 847 |
|
| 2 | once [prep] a [noun sg] | 396 |
|
| 3 | that once a [noun sg] | 19 |
|
| 4 | that once [prep] a | 8 |
|
