| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who have taken a [adj] | 14 |
|
| 2 | [Wh pn] have taken a [adj] | 8 |
|
| 3 | [Wh pn] had taken a [adj] | 6 |
|
| 4 | [Wh pn] have taken a [adj] | 5 |
|
