| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | teacher ' [noun] | 820 |
|
| 2 | teacher ' [noun pl] | 324 |
|
| 3 | [noun] ' unions | 67 |
|
| 4 | teacher ' union | 56 |
|
| 5 | teacher ['s] unions | 30 |
|
| 6 | teacher [unc] unions | 30 |
|
| 7 | teacher ' unions | 30 |
|
