| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] in a [noun] | 1729 |
|
| 2 | once in a [noun] | 164 |
|
| 3 | [conj] once a [noun] | 116 |
|
| 4 | [conj] once in a | 18 |
|
| 5 | [conj] once in [noun] | 14 |
|
