| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [been] [vb pp] [prep] [noun] | 16057 |
|
| 2 | often [vb pp] [prep] [noun] | 1031 |
|
| 3 | often [been] [vb pp] [prep] | 195 |
|
| 4 | often [been] [prep] [noun] | 8 |
|
