| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | teachers ' [noun] | 820 |
|
| 2 | [noun] ' union | 603 |
|
| 3 | [noun pl] ' union | 595 |
|
| 4 | teachers ' union | 56 |
|
| 5 | teachers [unc] union | 56 |
|
| 6 | teachers ['s] union | 56 |
|
| 7 | teacher ' union | 56 |
|
