| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | on [noun pl] 's [noun] | 223 |
|
| 2 | [prep] [noun pl] 's service | 22 |
|
| 3 | on [noun pl] [unc] service | 6 |
|
| 4 | on [noun] 's service | 6 |
|
