| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | can [not/n't] be explained [prep] | 52 |
|
| 2 | can be explained [prep] [adj] | 22 |
|
| 3 | [not/n't] be explained [prep] [adj] | 20 |
|
| 4 | can [not/n't] be [prep] [adj] | 12 |
|
