| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] a [noun] [unc] | 4299 |
|
| 2 | [noun] [prep] a [noun pl] [unc] | 308 |
|
| 3 | [noun] [prep] [art] teachers [unc] | 57 |
|
| 4 | [noun] [prep] a teacher [unc] | 47 |
|
| 5 | [noun] [prep] a teachers [unc] | 10 |
|
