| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] or [adv] a | 161 |
|
| 2 | once or [adv] [art] | 115 |
|
| 3 | once or [adv] [art] | 115 |
|
| 4 | once or [adv] a | 111 |
|
| 5 | once [conj] [adv] a | 110 |
|
| 6 | once or [adv] a | 110 |
|
