| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] what is [vb pp] | 254 |
|
| 2 | [adv] what is [vb pp] | 156 |
|
| 3 | [adv] [conj] is [vb pp] | 122 |
|
| 4 | [adv] [conj] what is | 43 |
|
