| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] after [num] year ' service | 15 |
|
| 2 | [noun sg] after [num] year ' service | 13 |
|
| 3 | [verb] after [num] year ' service | 8 |
|
| 4 | [adj] after [num] year ' service | 7 |
|
| 5 | [num] after [num] year ' service | 7 |
|
| 6 | retire after [num] year ' service | 5 |
|
| 7 | after [num] year ' service [prep] | 10 |
|
| 8 | after [num] year ' service [prep] | 10 |
|
