| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] [prep] a [noun] [unc] | 776 |
|
| 2 | often [vb pp] [prep] a [noun] | 234 |
|
| 3 | often [vb pp] [prep] [noun] [unc] | 22 |
|
