| No | Pattern | Freq | Relations |
|---|---|---|---|
| 31 | [prep] health authorities [prep] | 18 |
|
| 32 | [prep] health authorities [prep] | 18 |
|
| 33 | [prep] health authorities [to-vb] | 14 |
|
| 34 | [prep] health authorities in | 6 |
|
| 35 | [prep] health authorities in | 6 |
|
| 36 | [prep] health authorities [v-ing] | 5 |
|
| 37 | [prep] health authorities [pron] | 5 |
|
