| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [art] system [verb] | 188 |
|
| 2 | [verb] [art] system it | 9 |
|
| 3 | [verb] [art] it [verb] | 9 |
|
| 4 | [art] system it [verb] | 6 |
|
