| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i know at [adv] | 24 |
|
| 2 | i know at once | 17 |
|
| 3 | i knew at [adv] | 17 |
|
| 4 | i know at [adv] | 7 |
|
| 5 | i know at least | 7 |
|
