| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] why it is [that] | 27 |
|
| 2 | explain [Wh adv] it is [that] | 20 |
|
| 3 | explain [adv] it is [that] | 20 |
|
| 4 | explain why it be [that] | 14 |
|
| 5 | explain why it [be] [that] | 14 |
|
| 6 | explain why it [is] [that] | 10 |
|
| 7 | explain why [pron] is [that] | 10 |
|
| 8 | explain why it is [conj] | 10 |
|
| 9 | explain why [pers pn] is [that] | 10 |
|
| 10 | explain why it is [that] | 10 |
|
| 11 | explain why it is [that] | 10 |
|
