| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have work [prep] several years | 5 |
|
| 2 | [verb] work [prep] several years | 5 |
|
| 3 | work [prep] several years [prep] | 9 |
|
| 4 | work [prep] several years [prep] | 9 |
|
