| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [verb] that [art] [adj] system | 14 |
|
| 2 | be [vb pp] that [art] [adj] system | 13 |
|
| 3 | be [verb] that the [adj] system | 12 |
|
| 4 | is [verb] that [art] [adj] system | 6 |
|
| 5 | been [verb] that [art] [adj] system | 5 |
|
