| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] be [vb pp] a [noun] | 229 |
|
| 2 | [prep] be [vb pp] of [noun] | 104 |
|
| 3 | be [vb pp] of a [noun] | 63 |
|
| 4 | [prep] be [vb pp] of a | 51 |
|
| 5 | [prep] be of a [noun] | 13 |
|
