| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | his [adj] years [unc] service | 6 |
|
| 2 | his [adj] years ' service | 6 |
|
| 3 | his [adj] years ' service | 6 |
|
| 4 | his [adj] years ['s] service | 6 |
|
| 5 | his [num] years [unc] service | 5 |
|
