| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | what had [verb] as a [noun sg] | 7 |
|
| 2 | what had [vb pp] as a [noun] | 7 |
|
| 3 | what had begun as a [noun] | 6 |
|
| 4 | what had begin as a [noun] | 6 |
|
