| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] recent years they have | 8 |
|
| 2 | [prep] recent years they have | 8 |
|
| 3 | in recent years they have | 7 |
|
| 4 | in recent years they have | 7 |
|
| 5 | recent years they have [vb pp] | 5 |
|
| 6 | recent years they have [verb] | 5 |
|
