| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [prep] [art] [adj] | 32339 |
|
| 2 | [prep] [art] [adj] while | 582 |
|
| 3 | [vb past] [prep] [art] while | 232 |
|
| 4 | [vb past] [art] [adj] while | 37 |
|
