| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [noun] is [vb pp] [prep] its | 20 |
|
| 2 | a [noun sg] is [vb pp] [prep] its | 19 |
|
| 3 | a [noun] is [vb pp] by its | 9 |
|
| 4 | a [noun] is [vb pp] by its | 9 |
|
