| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun prp] [vb past] [prep] a time [prep] | 6 |
|
| 2 | [noun] [vb past] for a time [prep] | 5 |
|
| 3 | [noun] [vb past] [prep] a time of | 5 |
|
| 4 | [noun] [vb past] at a time [prep] | 5 |
|
