| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [Wh adv] it is [that] | 8 |
|
| 2 | [prep] [adv] it is [that] | 8 |
|
| 3 | [prep] [adv] it is that | 8 |
|
| 4 | [prep] why it is [that] | 5 |
|
| 5 | [prep] why it is [that] | 5 |
|
