| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] a teachers [unc] | 10 |
|
| 2 | [noun] [prep] a teachers ' | 10 |
|
| 3 | [noun] [prep] a teachers ['s] | 10 |
|
| 4 | [noun] [prep] a teachers ' | 10 |
|
| 5 | [noun sg] [prep] a teachers [unc] | 8 |
|
