| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at the [det] stage [prep] | 15 |
|
| 2 | at [art] same stage [prep] | 15 |
|
| 3 | at [art] [det] stage [prep] | 13 |
|
| 4 | at [art] [det] stage of | 12 |
|
