| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun] at | 23590 |
|
| 2 | [prep] [noun pl] at | 5076 |
|
| 3 | [prep] pupils [prep] | 462 |
|
| 4 | [prep] pupils [prep] | 462 |
|
| 5 | [prep] pupil at | 63 |
|
| 6 | [prep] pupils at | 60 |
|
