| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | that [vb mod] [verb] | 9411 |
|
| 2 | system [vb mod] [verb] | 777 |
|
| 3 | system that [verb] | 337 |
|
| 4 | system that [vb mod] | 115 |
|
