| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | can [adv] be doubted | 26 |
|
| 2 | can [not/n't] [be] doubted | 23 |
|
| 3 | can not [be] doubted | 23 |
|
| 4 | can not [be] doubted | 23 |
|
