| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] what [is] [prep] | 83 |
|
| 2 | [adv] what [is] [prep] | 73 |
|
| 3 | [conj] [adv] what [is] | 62 |
|
| 4 | [conj] [adv] [is] [prep] | 55 |
|
| 5 | [conj] [adv] what [prep] | 11 |
|
