| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] [prep] a | 15503 |
|
| 2 | so [prep] a | 627 |
|
| 3 | [vb infin] so [prep] | 395 |
|
| 4 | [vb infin] so a | 5 |
|
