| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | can not [vb infin] why | 90 |
|
| 2 | can not [verb] why | 90 |
|
| 3 | can not say [adv] | 30 |
|
| 4 | can [not/n't] say why | 5 |
|
| 5 | [vb mod] not say why | 5 |
|
| 6 | can not say why | 5 |
|
| 7 | [modal v] not say why | 5 |
|
| 8 | can not say why | 5 |
|
| 9 | can not say why | 5 |
|
| 10 | can [adv] say why | 5 |
|
