| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [prep] a [noun] | 53582 |
|
| 2 | [was/were] [vb pp] [prep] [noun] | 41940 |
|
| 3 | [was/were] [vb pp] [prep] a | 15225 |
|
| 4 | [was/were] [prep] a [noun] | 3072 |
|
| 5 | [was/were] [vb pp] a [noun] | 1499 |
|
