| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that once [art] [noun sg] | 24 |
|
| 2 | [that] once [art] [noun sg] | 24 |
|
| 3 | [that] once a [noun sg] | 23 |
|
| 4 | [that] once a [noun sg] | 19 |
|
