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