| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] can not [be] | 384 |
|
| 2 | [Wh det] can [not/n't] be | 384 |
|
| 3 | which can [not/n't] [be] | 361 |
|
| 4 | what can [not/n't] [be] | 23 |
|
