| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a short time | 376 |
|
| 2 | [pron] [prep] a time | 270 |
|
| 3 | [pron] [prep] a short | 55 |
|
| 4 | [pron] a short time | 5 |
|
