| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [be] [vb pp] a [noun sg] | 434 |
|
| 2 | what [modal v] [be] [vb pp] a | 55 |
|
| 3 | what [modal v] [be] a [noun sg] | 40 |
|
| 4 | what [modal v] [be] [vb pp] [noun sg] | 17 |
|
