| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i [vb past] [prep] a [adj] | 410 |
|
| 2 | i [vb past] [prep] a while | 26 |
|
| 3 | [vb past] [prep] a [adj] while | 18 |
|
| 4 | i [vb past] a [adj] while | 5 |
|
