| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | this has led to [art] | 56 |
|
| 2 | this has [vb pp] to the | 36 |
|
| 3 | this has [vb pp] to a | 24 |
|
| 4 | this has [vb pp] to an | 9 |
|
| 5 | this has happened to [art] | 5 |
|
| 6 | this has contributed to [art] | 5 |
|
