| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] have occurred [prep] recent | 6 |
|
| 2 | have occurred [prep] recent [noun] | 8 |
|
| 3 | have occurred [prep] recent [noun pl] | 8 |
|
| 4 | have occurred [prep] recent years | 7 |
|
| 5 | have occurred [prep] recent year | 7 |
|
