| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [be] [prep] [noun] [prep] | 650 |
|
| 2 | [vb past] [be] [prep] [noun sg] [prep] | 520 |
|
| 3 | [verb] [be] [prep] operation [prep] | 39 |
|
| 4 | [vb past] [be] [prep] operation [prep] | 12 |
|
| 5 | [vb past] [be] [prep] operation [prep] | 12 |
|
