| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [prep] an [noun] | 2229 |
|
| 2 | [vb past] [be] [prep] [noun] | 1517 |
|
| 3 | [be] [prep] an [noun] | 885 |
|
| 4 | [vb past] [be] an [noun] | 315 |
|
| 5 | [vb past] [be] [prep] an | 39 |
|
