| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] be [vb pp] [prep] [adj] | 6536 |
|
| 2 | system [vb mod] be [vb pp] [prep] | 230 |
|
| 3 | system [vb mod] be [vb pp] [adj] | 5 |
|
