| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has led to a increase | 10 |
|
| 2 | has [vb pp] to a increase | 10 |
|
| 3 | has [verb] to a increase | 10 |
|
| 4 | has [verb] to an increase | 10 |
|
| 5 | has lead to a increase | 10 |
|
