| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | can [adv] be doubted that | 7 |
|
| 2 | can [adv] be doubt that | 7 |
|
| 3 | can not be doubt that | 6 |
|
| 4 | can [not/n't] be doubt that | 6 |
|
| 5 | can not be doubt that | 6 |
|
