| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [coord] what is [verb] | 183 |
|
| 2 | [coord] what is [vb pp] | 138 |
|
| 3 | [coord] [pron] is known | 55 |
|
| 4 | [coord] what be known | 14 |
|
| 5 | [coord] what [be] known | 14 |
|
| 6 | [coord] what is known | 12 |
|
| 7 | [conj] what is known | 12 |
|
| 8 | [coord] [Wh det] is known | 12 |
|
| 9 | [coord] what is know | 12 |
|
| 10 | [coord] what [is] known | 12 |
|
