| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | work for more than a year | 10 |
|
| 2 | work [prep] more than a year | 10 |
|
| 3 | work for more than a year | 10 |
|
| 4 | work [prep] more than a year | 10 |
|
| 5 | work [prep] more than a year | 10 |
|
