| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] have led to a | 13 |
|
| 2 | [conj] has led [prep] a | 9 |
|
| 3 | and have led [prep] a | 8 |
|
| 4 | and have led [prep] a | 8 |
|
| 5 | [coord] have led [prep] a | 8 |
|
