| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | at [adv] so far as [noun sg] | 9 |
|
| 2 | at [adv] so far [subord] [noun sg] | 9 |
|
| 3 | at least so far [subord] [noun sg] | 9 |
|
| 4 | at least so far [subord] [noun sg] | 9 |
|
