| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [adj] years ' service | 66 |
|
| 2 | [prep] [num] years ' service | 64 |
|
| 3 | after [adj] years ' service | 42 |
|
| 4 | of [adj] years ' service | 9 |
|
| 5 | for [adj] years ' service | 7 |
|
| 6 | [prep] 25 years ' service | 7 |
|
| 7 | [prep] 25 years ' service | 7 |
|
| 8 | with [adj] years ' service | 5 |
|
| 9 | [prep] ten years ' service | 5 |
|
| 10 | [prep] ten years ' service | 5 |
|
