| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] a time | 1840 |
|
| 2 | [noun] [prep] a short | 542 |
|
| 3 | [prep] a short time | 376 |
|
| 4 | [noun] a short time | 25 |
|
| 5 | [noun] [prep] short time | 7 |
|
