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