| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] [prep] a time | 1160 |
|
| 2 | [noun sg] [prep] a short | 383 |
|
| 3 | [prep] a short time | 376 |
|
| 4 | [noun sg] a short time | 14 |
|
