| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [vb infin] know [Wh det] it [be] | 6 |
|
| 2 | [not/n't] [vb infin] know [Wh det] it [be] | 6 |
|
| 3 | not [vb infin] know [Wh det] it [be] | 6 |
|
| 4 | [vb mod] [vb infin] know [Wh det] it [be] | 5 |
|
| 5 | [modal v] [vb infin] know [Wh det] it [be] | 5 |
|
| 6 | n't [vb infin] know [Wh det] it [be] | 5 |
|
