| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] [adv] in a while | 12 |
|
| 2 | [conj] [adv] in a while | 12 |
|
| 3 | [conj] once in a while | 11 |
|
| 4 | [coord] [adv] in a while | 6 |
|
