| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] in recent years | 804 |
|
| 2 | concern [prep] recent years | 7 |
|
| 3 | concern [prep] recent years | 7 |
|
| 4 | concern in recent [noun] | 6 |
|
| 5 | concern in recent years | 6 |
|
| 6 | concern in recent year | 6 |
|
| 7 | concern in recent [noun pl] | 6 |
|
| 8 | concern in [adj] years | 6 |
|
