| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [is] that | 766 |
|
| 2 | [Wh adv] [is] that | 14 |
|
| 3 | why [is] [conj] | 11 |
|
| 4 | why [be] that | 10 |
|
| 5 | why [is] that | 8 |
|
