| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] pupils ' [adj] | 21 |
|
| 2 | [prep] pupil ' [adj] | 21 |
|
| 3 | of pupil ' [adj] | 12 |
|
| 4 | of pupil ' [adj] | 12 |
|
