| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [be] a [noun] | 1981 |
|
| 2 | [vb past] a [noun] on | 1877 |
|
| 3 | [be] a [noun] on | 1412 |
|
| 4 | [vb past] [be] [noun] on | 15 |
|
