| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | n't know how [pron] [modal v] [verb] | 99 |
|
| 2 | n't know how [pers pn] [modal v] [verb] | 96 |
|
| 3 | n't [verb] how he [modal v] [verb] | 18 |
|
| 4 | n't [vb infin] how he [modal v] [verb] | 18 |
|
| 5 | [adv] know how he [modal v] [verb] | 13 |
|
| 6 | n't know [adv] he [modal v] [verb] | 13 |
|
| 7 | n't know [Wh adv] he [modal v] [verb] | 13 |
|
| 8 | [not/n't] know how he [modal v] [verb] | 12 |
|
| 9 | not know how he [modal v] [verb] | 12 |
|
| 10 | n't know how he [modal v] [verb] | 11 |
|
| 11 | n't know how he [modal v] [verb] | 11 |
|
| 12 | n't know how he [modal v] [verb] | 11 |
|
