| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | so far [subord] [to-vb] [conj] | 79 |
|
| 2 | [vb pp] so far [subord] [to-vb] | 36 |
|
| 3 | [vb pp] so [subord] [to-vb] [conj] | 9 |
|
