| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] how it is that | 17 |
|
| 2 | [verb] how it is [that] | 17 |
|
| 3 | explain how it is [that] | 10 |
|
| 4 | [to-vb] how it is [that] | 6 |
|
