| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb past] [prep] a time | 51 |
|
| 2 | [pron] [vb past] [prep] a short | 41 |
|
| 3 | [vb past] [prep] a short time | 15 |
|
| 4 | [pron] [vb past] a short time | 12 |
|
| 5 | [pron] [prep] a short time | 11 |
|
