| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | do [adv] know why [pron] | 455 |
|
| 2 | do [not/n't] know why [pron] | 455 |
|
| 3 | do not know why [pron] | 454 |
|
| 4 | do not know [adv] [pron] | 81 |
|
| 5 | do not know [Wh adv] [pron] | 66 |
|
| 6 | do not [verb] why [pron] | 26 |
|
| 7 | do not know why [pron] | 24 |
|
| 8 | [verb] not know why [pron] | 24 |
|
| 9 | [vb base] not know why [pron] | 11 |
|
| 10 | do not know why [pron] | 11 |
|
