| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [conj] once [art] [noun] | 43 |
|
| 2 | [adv] [conj] once [art] [noun sg] | 38 |
|
| 3 | [adv] [conj] [adv] [art] month | 25 |
|
| 4 | [adv] [conj] once [art] month | 12 |
|
