| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | the [adj] system [vb -s] | 300 |
|
| 2 | the [adj] system and | 291 |
|
| 3 | the [adj] and [vb -s] | 69 |
|
| 4 | [adj] system and [vb -s] | 22 |
|
