| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | system [vb pp] on the | 39 |
|
| 2 | system base on the | 28 |
|
| 3 | system based on the | 28 |
|
| 4 | system [vb -s] on the | 12 |
|
| 5 | system depend on the | 7 |
|
| 6 | system [to-vb] on the | 6 |
|
| 7 | system run on the | 6 |
|
| 8 | system depends on the | 6 |
|
