| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | system that can be [vb pp] | 15 |
|
| 2 | system that can [be] [vb pp] | 15 |
|
| 3 | system that can be [vb pp] | 15 |
|
| 4 | systems that can [be] [vb pp] | 9 |
|
| 5 | system that can [be] [vb pp] | 6 |
|
