| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | there [verb] been a [adj] | 1105 |
|
| 2 | [verb] been a [adj] decline | 33 |
|
| 3 | there [verb] been a decline | 16 |
|
| 4 | there [verb] been [adj] decline | 6 |
|
