| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [Wh det] [is] [adv] [verb] is that | 16 |
|
| 2 | [Wh det] is [adv] [verb] be that | 16 |
|
| 3 | what [is] [adv] [verb] be that | 15 |
|
| 4 | [Wh det] [is] [adv] [vb pp] be that | 13 |
|
