| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [ex0] [vb past] [prep] [be] | 582 |
|
| 2 | [vb past] [prep] [be] an | 226 |
|
| 3 | [ex0] [vb past] [be] an | 129 |
|
| 4 | [ex0] [prep] [be] an | 6 |
|
