| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] know [conj] it [is] [adv] | 36 |
|
| 2 | [adv] [verb] if it [is] [adv] | 34 |
|
| 3 | [adv] [vb infin] if it [is] [adv] | 29 |
|
| 4 | [adv] know if [pron] [is] [adv] | 21 |
|
| 5 | [adv] know if it [be] [adv] | 16 |
|
| 6 | [adv] know if it [is] [adv] | 15 |
|
