| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [verb] [prep] recent years | 96 |
|
| 2 | been erode [prep] [adj] years | 6 |
|
| 3 | [be] erode [prep] recent years | 5 |
|
| 4 | been erode [prep] [adj] years | 5 |
|
| 5 | been erode [prep] recent [noun] | 5 |
|
| 6 | [been] erode [prep] recent years | 5 |
|
| 7 | been erode [prep] recent year | 5 |
|
| 8 | be erode [prep] recent years | 5 |
|
| 9 | been erode [prep] recent [noun pl] | 5 |
|
| 10 | been erode [prep] recent years | 5 |
|
| 11 | been erode [prep] recent years | 5 |
|
