| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that once [art] [noun sg] [verb] | 10 |
|
| 2 | [that] once a [noun sg] [verb] | 10 |
|
| 3 | [that] once [art] [noun sg] [verb] | 10 |
|
| 4 | [that] once a [noun sg] [verb] | 9 |
|
| 5 | [that] once [art] [noun sg] [vb -s] | 7 |
|
