| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | not so [adv] as i know | 5 |
|
| 2 | [not/n't] so [adv] as i know | 5 |
|
| 3 | [not/n't] so far as i know | 5 |
|
| 4 | [not/n't] so far as i know | 5 |
|
| 5 | [not/n't] so [adv] as i know | 5 |
|
