| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [vb pp] [prep] [num] [noun] | 3725 |
|
| 2 | [was/were] [vb pp] on [adj] [noun] | 1321 |
|
| 3 | [be] [vb pp] on [num] [noun] | 996 |
|
| 4 | [was/were] [verb] on [num] [noun] | 641 |
|
