| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [prep] recent year [prep] | 84 |
|
| 2 | [vb pp] [prep] [adj] year by | 72 |
|
| 3 | [vb pp] [prep] recent [noun] by | 38 |
|
| 4 | [verb] [prep] recent year by | 24 |
|
