| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [prep] a time | 636 |
|
| 2 | [verb] [prep] a short | 417 |
|
| 3 | [prep] a short time | 376 |
|
| 4 | [verb] a short time | 53 |
|
| 5 | [verb] [prep] short time | 12 |
|
