| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] be [vb pp] [prep] some | 212 |
|
| 2 | [vb -s] be [vb pp] [prep] study | 15 |
|
| 3 | be [vb pp] [prep] some study | 6 |
|
