| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh pn] at one time | 15 |
|
| 2 | [Wh pn] [prep] one time | 15 |
|
| 3 | [Wh pn] [prep] one time | 15 |
|
| 4 | [Wh pn] at one time | 15 |
|
| 5 | who [prep] one time | 15 |
|
| 6 | [Wh pn] [prep] one time | 15 |
|
