| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | this have led [prep] a | 26 |
|
| 2 | this have led to a | 25 |
|
| 3 | this have led to a | 25 |
|
| 4 | this has led [prep] a | 19 |
|
| 5 | this had led [prep] a | 7 |
|
