| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] what it is that | 38 |
|
| 2 | [to-vb] [Wh det] it is that | 21 |
|
| 3 | [vb infin] [Wh det] it is that | 7 |
|
| 4 | [v-ing] [Wh det] it is that | 7 |
|
| 5 | know [Wh det] it is that | 6 |
|
| 6 | [vb base] [Wh det] it is that | 5 |
|
| 7 | [verb] whatever it is that | 5 |
|
