| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] at one time | 22 |
|
| 2 | [vb base] at one time | 22 |
|
| 3 | [vb base] [prep] one time | 22 |
|
| 4 | have [prep] one time | 9 |
|
