| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [verb] that the [adj] | 278 |
|
| 2 | [verb] that the [adj] system | 103 |
|
| 3 | is [verb] the [adj] system | 12 |
|
| 4 | is [verb] that the system | 8 |
|
| 5 | is that the [adj] system | 7 |
|
