| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] which [adv] [vb -s] [art] | 426 |
|
| 2 | system which [adv] [verb] [art] | 11 |
|
| 3 | system [pron] [adv] [vb -s] [art] | 9 |
|
| 4 | system which [adv] [vb -s] [art] | 9 |
|
