| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [adj] years service | 62 |
|
| 2 | [prep] [num] year service | 61 |
|
| 3 | after [adj] year service | 42 |
|
| 4 | with [adj] year service | 9 |
|
| 5 | [prep] five year service | 5 |
|
| 6 | [prep] five year service | 5 |
|
| 7 | for [adj] year service | 5 |
|
