| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what [be] [adv] [art] | 726 |
|
| 2 | what [be] [adv] [art] | 710 |
|
| 3 | [pron] [be] once [art] | 194 |
|
| 4 | what [be] once [art] | 57 |
|
