| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has [vb pp] in [adj] years | 80 |
|
| 2 | has [vb pp] in recent years | 64 |
|
| 3 | has [vb pp] in [adj] years | 64 |
|
| 4 | has [vb pp] in recent years | 64 |
|
| 5 | has [vb pp] in [num] years | 15 |
|
| 6 | has changed in [adj] years | 8 |
|
| 7 | has increased in [adj] years | 6 |
|
| 8 | has declined in [adj] years | 6 |
|
