| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] at a [adj] | 1457 |
|
| 2 | at a [adj] stage | 723 |
|
| 3 | [vb pp] at [adj] stage | 207 |
|
| 4 | [vb pp] a [adj] stage | 32 |
|
