| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] a [unc] | 719 |
|
| 2 | [noun] [prep] teachers [unc] | 148 |
|
| 3 | [prep] a teachers [unc] | 18 |
|
| 4 | [noun] [prep] a teachers | 10 |
|
