| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [noun pl] [unc] national | 15 |
|
| 2 | [prep] [noun pl] ['s] national | 15 |
|
| 3 | [prep] [noun pl] ' national | 13 |
|
| 4 | [prep] [noun pl] ' national | 13 |
|
| 5 | [prep] employers [unc] national | 6 |
|
| 6 | [prep] employees [unc] national | 5 |
|
| 7 | on [noun pl] [unc] national | 5 |
|
| 8 | on [noun pl] [unc] national | 5 |
|
