| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be an [noun] of [Wh det] | 7 |
|
| 2 | it be an [noun sg] of [Wh det] | 7 |
|
| 3 | it be an [noun] of what | 6 |
|
| 4 | it is an [noun] of [Wh det] | 5 |
|
